Thomas Hattar, MD
NPI 1154438497 · Internal Medicine Physician · Annapolis, MD
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Hattar, MD is a Internal Medicine Physician provider in Annapolis, MD (NPI 1154438497).
Provider details
- NPI number
- 1154438497
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0050321 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 66 | 23 |
| Amlodipine Besylate | 32 | — |
| Levothyroxine Sodium | 28 | — |
| Allopurinol | 25 | — |
| Tramadol Hcl | 20 | — |
| Gabapentin | 17 | — |
| Lisinopril | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thomas Hattar's NPI number?
- Thomas Hattar's National Provider Identifier (NPI) is 1154438497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Hattar's specialty?
- Thomas Hattar is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Hattar located?
- Thomas Hattar's practice location on file with NPPES is 2009 Tidewater Colony Drive, Annapolis, MD 21401-0000.
- What is Thomas Hattar's phone number?
- The practice phone number listed in the NPPES registry for Thomas Hattar is (410) 224-7615.
- Does Thomas Hattar accept Medicare?
- Thomas Hattar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Hattar's NPI active?
- Yes — Thomas Hattar's NPI (1154438497) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.