Claudia Pfeil, M.D.
NPI 1639367584 · Internal Medicine Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claudia Pfeil, M.D. is a Internal Medicine Physician provider in Pasadena, CA (NPI 1639367584).
Provider details
- NPI number
- 1639367584
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A77073 (CA)
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 tenure38% of score
18 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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 81 | 61 |
| Amlodipine Besylate | 78 | 53 |
| Losartan Potassium | 60 | 39 |
| Lisinopril | 57 | 40 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 47 | 41 |
| Levothyroxine Sodium | 45 | 32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-04
- Last updated
- 2023-10-27
- Certified
- 2022-10-07
Frequently asked questions
- What is Claudia Pfeil's NPI number?
- Claudia Pfeil's National Provider Identifier (NPI) is 1639367584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudia Pfeil's specialty?
- Claudia Pfeil is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claudia Pfeil located?
- Claudia Pfeil's practice location on file with NPPES is 401 S Fair Oaks Ave, Pasadena, CA 91105-2603.
- What is Claudia Pfeil's phone number?
- The practice phone number listed in the NPPES registry for Claudia Pfeil is (626) 795-7556.
- Does Claudia Pfeil accept Medicare?
- Claudia Pfeil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claudia Pfeil's NPI active?
- Yes — Claudia Pfeil's NPI (1639367584) is active in the NPPES registry as of the last update on 2023-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.