Telehealth Specialty Services Directory
Telehealth has expanded well beyond general primary care into a broad range of clinical specialty domains, each with its own regulatory requirements, technology modalities, and reimbursement structures. This directory maps the major specialty service categories delivered through telehealth channels in the United States, identifying the clinical scope, delivery mechanisms, and applicable federal and state oversight frameworks for each. Understanding where specialty-specific rules differ from general telehealth rules matters for both clinicians and healthcare administrators navigating licensure, billing, and practice standards. The content draws on public guidance from the Centers for Medicare & Medicaid Services (CMS), the Drug Enforcement Administration (DEA), and state licensing boards.
Definition and scope
Telehealth specialty services refer to the delivery of clinical consultation, diagnosis, monitoring, or treatment management within a defined medical specialty — such as cardiology, neurology, psychiatry, or dermatology — through audio-video, asynchronous, or remote monitoring technologies. These services differ from general telehealth in that they are governed by specialty-specific credentialing standards, often require interpretation of specialized diagnostic data transmitted remotely, and may carry distinct reimbursement classifications under CMS billing codes.
The telehealth vs. telemedicine definitions distinction applies across specialty categories: "telemedicine" is frequently used in specialty contexts to describe physician-to-physician consultations (e.g., a rural emergency physician consulting a remote neurologist), while "telehealth" encompasses broader clinical and non-clinical services. CMS recognizes specialty telehealth services under several Current Procedural Terminology (CPT) code families, including codes for remote patient monitoring (CPT 99453–99458), interprofessional telephone and internet consultations (CPT 99446–99452), and specialty-specific evaluation and management codes.
The telehealth regulatory framework in the United States establishes that specialty services must comply with the same foundational rules — HIPAA privacy requirements, state licensure for the patient's physical location, and informed consent — while also meeting specialty board and accreditation standards.
How it works
Specialty telehealth delivery follows three primary modalities recognized by the Health Resources & Services Administration (HRSA):
- Synchronous live video — Real-time, two-way audio-video encounters between a specialist and a patient or referring clinician. Used in telepsychiatry, telecardiology, and telestroke.
- Store-and-forward (asynchronous) — Clinical data (images, ECGs, lab results, video clips) transmitted to a specialist for review without real-time interaction. Dominant in teleradiology services and telehealth dermatology services.
- Remote patient monitoring (RPM) — Continuous or periodic collection of physiologic data (blood pressure, glucose, cardiac rhythm) via connected devices, reviewed by a clinical team. Detailed further at remote patient monitoring overview.
The eConsult model involves a primary care provider submitting a structured clinical question to a specialist through an electronic health record (EHR) portal; qualified professionals returns a documented recommendation without a direct patient encounter. CMS distinguishes eConsult billing from standard telehealth visits, and the American Hospital Association has documented eConsult use as a mechanism to reduce specialist wait times by consolidating consultation volume.
Store-and-forward telehealth is not reimbursed by Medicare for most specialties in non-HRSA-designated geographic areas, except in Alaska and Hawaii under longstanding federal policy, per CMS Medicare telehealth coverage and billing guidance.
Common scenarios
The following specialty categories represent the highest-volume or most clinically established telehealth applications documented in federal program data and research-based literature:
Behavioral health and psychiatry — The largest single telehealth specialty by visit volume under Medicare data. Telepsychiatry services and telehealth mental health and behavioral services cover medication management, psychotherapy, and crisis consultation. The DEA's Special Registration Framework for telemedicine prescribing of controlled substances directly affects psychiatric practice; see DEA telemedicine prescribing regulations.
Neurology and stroke — Telestroke and neurology telehealth enables remote neurologist evaluation for stroke patients in emergency departments within the critical 3–4.5 hour tPA administration window. The American Stroke Association and The Joint Commission both reference telestroke as a recognized stroke care delivery model in their certification frameworks.
Dermatology — Store-and-forward image review is the standard modality. A board-certified dermatologist reviews high-resolution photographs submitted by a patient or referring clinician, returning a diagnosis and treatment recommendation. The American Academy of Dermatology has published teledermatology practice guidelines covering image quality standards and clinical documentation requirements.
Cardiology and remote monitoring — Telehealth cardiology and remote monitoring encompasses implantable device interrogation, wearable ECG monitoring, and RPM for heart failure. CMS reimburses remote cardiac monitoring under CPT codes 93228 and 93229 for external mobile cardiac telemetry.
Endocrinology and diabetes management — Telehealth diabetes management integrates continuous glucose monitor (CGM) data transmission with clinical review. The American Diabetes Association's Standards of Care recognize telehealth as an acceptable modality for diabetes education and medical nutrition therapy.
Radiology — Teleradiology services involve remote interpretation of imaging studies (X-ray, CT, MRI) by radiologists licensed in the state where the patient is located, per the American College of Radiology teleradiology practice standards.
Decision boundaries
Specialty telehealth has defined limits that separate appropriate telehealth delivery from encounters requiring in-person evaluation. Key boundary conditions include:
- Physical examination requirements — Specialties requiring hands-on assessment (orthopedics, general surgery, ophthalmology with slit-lamp) have a narrower telehealth scope. Some evaluations, such as funduscopic eye exams, require in-person equipment regardless of video quality.
- Licensure jurisdiction — A specialist must hold licensure in the state where the patient is physically located at the time of service, not the state where qualified professionals's primary practice is located. The Interstate Medical Licensure Compact covers 40 participating states and jurisdictions (as of its published membership roster), streamlining multistate specialist credentialing.
- Prescribing limits — Specialty prescribing of Schedule II–V controlled substances via telehealth remains subject to the Ryan Haight Online Pharmacy Consumer Protection Act (21 U.S.C. § 829) and subsequent DEA rule. Controlled substances and telehealth prescribing explains current in-person evaluation requirements and applicable exceptions.
- Synchronous vs. asynchronous eligibility — Medicare does not cover store-and-forward encounters for most specialties in the contiguous 48 states. Providers operating asynchronous specialty services outside Alaska and Hawaii must verify state-level telehealth laws and policies and private payer contracts before billing.
- Facility originating site rules — For Medicare, the patient's location (originating site) must meet statutory criteria under 42 U.S.C. § 1395m(m) for reimbursement of specialty telehealth services in fee-for-service Medicare, though these rules were modified during the COVID-19 public health emergency period and are subject to ongoing Congressional action per telehealth federal legislation history.
Specialty telehealth appropriateness is also shaped by clinical acuity. Acute emergencies that require immediate physical intervention — airway management, surgical bleeding control, active MI requiring catheterization — fall outside telehealth scope regardless of specialty.
References
- Centers for Medicare & Medicaid Services — Telehealth Services
- Health Resources & Services Administration — Telehealth
- Drug Enforcement Administration — Telemedicine Prescribing
- American College of Radiology — Teleradiology Practice Standards
- American Academy of Dermatology — Teledermatology
- The Joint Commission — Telehealth Accreditation
- Interstate Medical Licensure Compact — Participating States
- Ryan Haight Online Pharmacy Consumer Protection Act, 21 U.S.C. § 829
- 42 U.S.C. § 1395m(m) — Medicare Telehealth Originating Site Statute
- American Diabetes Association — Standards of Medical Care in Diabetes