John Hammons, M.D.
NPI 1487601761 · Obstetrics & Gynecology Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hammons, M.D. is a Obstetrics & Gynecology Physician provider in Saint Charles, MO (NPI 1487601761).
Provider details
- NPI number
- 1487601761
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2002015290 (MO)
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
20 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Hammons's NPI number?
- John Hammons's National Provider Identifier (NPI) is 1487601761, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hammons's specialty?
- John Hammons is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is John Hammons located?
- John Hammons's practice location on file with NPPES is 300 1st Capitol Dr, Saint Charles, MO 63301-2844.
- What is John Hammons's phone number?
- The practice phone number listed in the NPPES registry for John Hammons is (636) 947-5000.
- Does John Hammons accept Medicare?
- John Hammons is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hammons's NPI active?
- Yes — John Hammons's NPI (1487601761) 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.