Gabriel Sunn Felsen, MD
NPI 1881991438 · Physical Medicine & Rehabilitation Physician · Fort Lauderdale, FL
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gabriel Sunn Felsen, MD is a Physical Medicine & Rehabilitation Physician provider in Fort Lauderdale, FL (NPI 1881991438).
Provider details
- NPI number
- 1881991438
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME111641 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,648 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 2,673 | $109 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 2,641 | $75 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 225 | $184 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 58 | $135 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 51 | $41 |
Typical Medicare-allowed amounts for these services range $41–$184 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 766 | 78 |
| Tramadol Hcl | 644 | 87 |
| Oxycodone Hcl | 319 | 37 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 221 | 49 |
| Pregabalin | 193 | 23 |
| Gabapentin | 172 | 50 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-02-17
- Last updated
- 2023-04-24
- Certified
- 2023-04-24
Frequently asked questions
- What is Gabriel Sunn Felsen's NPI number?
- Gabriel Sunn Felsen's National Provider Identifier (NPI) is 1881991438, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gabriel Sunn Felsen's specialty?
- Gabriel Sunn Felsen is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Gabriel Sunn Felsen located?
- Gabriel Sunn Felsen's practice location on file with NPPES is 1615 Miami Rd, Fort Lauderdale, FL 33316-2933.
- What is Gabriel Sunn Felsen's phone number?
- The practice phone number listed in the NPPES registry for Gabriel Sunn Felsen is (201) 654-6397.
- Does Gabriel Sunn Felsen accept Medicare?
- Gabriel Sunn Felsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gabriel Sunn Felsen's NPI active?
- Yes — Gabriel Sunn Felsen's NPI (1881991438) is active in the NPPES registry as of the last update on 2023-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.