Isaac Naggar, M.D., PH.D.
NPI 1548649700 · Neurology Physician · Bethesda, MD
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Naggar, M.D., PH.D. is a Neurology Physician provider in Bethesda, MD (NPI 1548649700).
Provider details
- NPI number
- 1548649700
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD047032 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
994 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) |
|---|---|---|
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 170 | $61 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 126 | $184 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 125 | $85 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 102 | $126 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $134 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 61 | 16 |
| Levetiracetam | 57 | 14 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 26 | — |
| Lacosamide | 25 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel | 24 | — |
| Rizatriptan Benzoatebrand: Rizatriptan | 19 | — |
| Divalproex Sodium | 19 | — |
Practice location
Mailing address
Additional practice locations (2)
- 10 Center DrBethesda, MD 20892-3436Phone: (301) 451-7293
- 475 Seaview AveStaten Island, NY 10305-3436Phone: (718) 226-6205
Registry dates
- Enumerated
- 2015-05-21
- Last updated
- 2023-09-12
- Certified
- 2023-09-12
Frequently asked questions
- What is Isaac Naggar's NPI number?
- Isaac Naggar's National Provider Identifier (NPI) is 1548649700, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Naggar's specialty?
- Isaac Naggar is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Naggar located?
- Isaac Naggar's practice location on file with NPPES is 7315 Wisconsin Ave, Bethesda, MD 20814-3202.
- What is Isaac Naggar's phone number?
- The practice phone number listed in the NPPES registry for Isaac Naggar is (240) 235-9120.
- Does Isaac Naggar accept Medicare?
- Isaac Naggar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Naggar's NPI active?
- Yes — Isaac Naggar's NPI (1548649700) is active in the NPPES registry as of the last update on 2023-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.