Kathleen Zeller, MD
NPI 1538275987 · Internal Medicine Physician · Portsmouth, RI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Zeller, MD is a Internal Medicine Physician provider in Portsmouth, RI (NPI 1538275987).
Provider details
- NPI number
- 1538275987
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD13919 (RI)
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
19 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
344 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 | 138 | $135 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 117 | $96 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 69 | $141 |
| Hemoglobin A1c Level83036 | 20 | $10 |
Typical Medicare-allowed amounts for these services range $10–$141 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 199 | 51 |
| Levothyroxine Sodium | 103 | 28 |
| Trazodone Hcl | 100 | 20 |
| Amlodipine Besylate | 96 | 29 |
| Lisinopril | 81 | 29 |
| Escitalopram Oxalate | 66 | 13 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-21
- Last updated
- 2020-04-27
- Certified
- 2020-04-27
Frequently asked questions
- What is Kathleen Zeller's NPI number?
- Kathleen Zeller's National Provider Identifier (NPI) is 1538275987, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Zeller's specialty?
- Kathleen Zeller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kathleen Zeller located?
- Kathleen Zeller's practice location on file with NPPES is 2444 East Main Road, Portsmouth, RI 02871-4025.
- What is Kathleen Zeller's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Zeller is (401) 683-4817.
- Does Kathleen Zeller accept Medicare?
- Kathleen Zeller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathleen Zeller's NPI active?
- Yes — Kathleen Zeller's NPI (1538275987) is active in the NPPES registry as of the last update on 2020-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.