Demetra Stamm, M.D.
NPI 1396906269 · General Practice Physician · San Mateo, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Demetra Stamm, M.D. is a General Practice Physician provider in San Mateo, CA (NPI 1396906269).
Provider details
- NPI number
- 1396906269
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A110149 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 37 | — |
| Trazodone Hcl | 32 | 11 |
| Escitalopram Oxalate | 19 | — |
| Bupropion Hclbrand: Bupropion Xl | 16 | — |
| Lamotrigine | 16 | — |
| Fluoxetine Hcl | 14 | — |
| Buspirone Hcl | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$405 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-23
- Last updated
- 2017-01-04
Frequently asked questions
- What is Demetra Stamm's NPI number?
- Demetra Stamm's National Provider Identifier (NPI) is 1396906269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Demetra Stamm's specialty?
- Demetra Stamm is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Demetra Stamm located?
- Demetra Stamm's practice location on file with NPPES is 222 W 39th Ave, San Mateo, CA 94403-4364.
- What is Demetra Stamm's phone number?
- The practice phone number listed in the NPPES registry for Demetra Stamm is (916) 955-2809.
- Does Demetra Stamm accept Medicare?
- Demetra Stamm is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Demetra Stamm's NPI active?
- Yes — Demetra Stamm's NPI (1396906269) is active in the NPPES registry as of the last update on 2017-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.