Susan Ehrlich, MD
NPI 1942379474 · Internal Medicine Physician · San Mateo, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Ehrlich, MD is a Internal Medicine Physician provider in San Mateo, CA (NPI 1942379474).
Provider details
- NPI number
- 1942379474
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A79518 (CA)
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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 80 | 18 |
| Amlodipine Besylate | 55 | 15 |
| Losartan Potassium | 47 | — |
| Hydrochlorothiazide | 42 | — |
| Gabapentin | 36 | 11 |
| Metformin Hcl | 33 | — |
| Lisinopril | 32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is Susan Ehrlich's NPI number?
- Susan Ehrlich's National Provider Identifier (NPI) is 1942379474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Ehrlich's specialty?
- Susan Ehrlich is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Susan Ehrlich located?
- Susan Ehrlich's practice location on file with NPPES is 222 W 39th Ave, San Mateo, CA 94403-4364.
- What is Susan Ehrlich's phone number?
- The practice phone number listed in the NPPES registry for Susan Ehrlich is (650) 573-2222.
- Does Susan Ehrlich accept Medicare?
- Susan Ehrlich is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Ehrlich's NPI active?
- Yes — Susan Ehrlich's NPI (1942379474) 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.