Carol Thomas, MD
NPI 1861591455 · Endocrinology, Diabetes & Metabolism Physician · Palo Alto, CA
Carol Thomas, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Palo Alto, CA (NPI 1861591455).
Provider details
- NPI number
- 1861591455
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G380670 (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
19 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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodiumbrand: Synthroid | 66 | 16 |
| Tirzepatidebrand: Mounjaro | 59 | — |
| Rosuvastatin Calcium | 57 | 20 |
| Levothyroxine Sodium | 47 | 15 |
| Gabapentin | 38 | — |
| Metformin Hclbrand: Metformin Hcl Er | 38 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$50 across 2 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
- 2006-09-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Carol Thomas's NPI number?
- Carol Thomas's National Provider Identifier (NPI) is 1861591455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carol Thomas's specialty?
- Carol Thomas is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Carol Thomas located?
- Carol Thomas's practice location on file with NPPES is 1101 Welch Road, Palo Alto, CA 94304.
- What is Carol Thomas's phone number?
- The practice phone number listed in the NPPES registry for Carol Thomas is (650) 326-8700.
- Is Carol Thomas's NPI active?
- Yes — Carol Thomas's NPI (1861591455) 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.