Thomas Vangeem, M.D.
NPI 1801974779 · Obstetrics & Gynecology Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Vangeem, M.D. is a Obstetrics & Gynecology Physician provider in Thousand Oaks, CA (NPI 1801974779).
Provider details
- NPI number
- 1801974779
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G54706 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 58 | 19 |
| Atorvastatin Calcium | 54 | 20 |
| Ibuprofen | 45 | 17 |
| Levothyroxine Sodium | 40 | 11 |
| Lisinopril | 39 | 16 |
| Amlodipine Besylate | 33 | 13 |
| Empagliflozinbrand: Jardiance |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$46 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
- 2006-11-01
- Last updated
- 2014-04-10
Frequently asked questions
- What is Thomas Vangeem's NPI number?
- Thomas Vangeem's National Provider Identifier (NPI) is 1801974779, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Vangeem's specialty?
- Thomas Vangeem is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Vangeem located?
- Thomas Vangeem's practice location on file with NPPES is 2220 Lynn Rd Ste 108, Thousand Oaks, CA 91360-8012.
- What is Thomas Vangeem's phone number?
- The practice phone number listed in the NPPES registry for Thomas Vangeem is (805) 495-4545.
- Does Thomas Vangeem accept Medicare?
- Thomas Vangeem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Vangeem's NPI active?
- Yes — Thomas Vangeem's NPI (1801974779) is active in the NPPES registry as of the last update on 2014-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.