Carolyn Hammett, MD
NPI 1154331908 · Internal Medicine Physician · Hyattsville, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Hammett, MD is a Internal Medicine Physician provider in Hyattsville, MD (NPI 1154331908).
Provider details
- NPI number
- 1154331908
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0039966 (MD)
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
20 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
1,442 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 630 | $107 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 225 | $18 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 218 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 136 | $88 |
| Administration of Influenza Virus VaccineG0008 | 106 | $36 |
| Admn Sarscov2 Vacc 1 Dose |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 87 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 340 | 126 |
| Amlodipine Besylate | 317 | 100 |
| Lisinopril | 217 | 70 |
| Rosuvastatin Calcium | 172 | 59 |
| Losartan Potassium | 169 | 56 |
| Levothyroxine Sodium | 163 | 59 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2008-06-12
Frequently asked questions
- What is Carolyn Hammett's NPI number?
- Carolyn Hammett's National Provider Identifier (NPI) is 1154331908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Hammett's specialty?
- Carolyn Hammett is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Carolyn Hammett located?
- Carolyn Hammett's practice location on file with NPPES is 1835 University Blvd E, Hyattsville, MD 20783-4600.
- What is Carolyn Hammett's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Hammett is (301) 431-4030.
- Does Carolyn Hammett accept Medicare?
- Carolyn Hammett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Hammett's NPI active?
- Yes — Carolyn Hammett's NPI (1154331908) is active in the NPPES registry as of the last update on 2008-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.