Gerrit Seymour, DO
NPI 1952049645 · Family Medicine Physician · Billings, MT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerrit Seymour, DO is a Family Medicine Physician provider in Billings, MT (NPI 1952049645).
Provider details
- NPI number
- 1952049645
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 160349 (MT)
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
4 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 29 |
| Atorvastatin Calcium | 26 |
| Sertraline Hcl | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 20 |
| Furosemide | 17 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 15 |
| Amlodipine Besylate | 14 |
| Empagliflozinbrand: Jardiance | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-05-24
- Last updated
- 2025-07-08
- Certified
- 2025-07-08
Frequently asked questions
- What is Gerrit Seymour's NPI number?
- Gerrit Seymour's National Provider Identifier (NPI) is 1952049645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerrit Seymour's specialty?
- Gerrit Seymour is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerrit Seymour located?
- Gerrit Seymour's practice location on file with NPPES is 123 S 27th St, Billings, MT 59101-4227.
- What is Gerrit Seymour's phone number?
- The practice phone number listed in the NPPES registry for Gerrit Seymour is (406) 243-3350.
- Does Gerrit Seymour accept Medicare?
- Gerrit Seymour is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerrit Seymour's NPI active?
- Yes — Gerrit Seymour's NPI (1952049645) is active in the NPPES registry as of the last update on 2025-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.