John Shannon, M.D.
NPI 1437118825 · Obstetrics & Gynecology Physician · Decatur, AL
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Shannon, M.D. is a Obstetrics & Gynecology Physician provider in Decatur, AL (NPI 1437118825).
Provider details
- NPI number
- 1437118825
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 57091 (AL)
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
- 2006-03-23
- Last updated
- 2011-04-01
Frequently asked questions
- What is John Shannon's NPI number?
- John Shannon's National Provider Identifier (NPI) is 1437118825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Shannon's specialty?
- John Shannon is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is John Shannon located?
- John Shannon's practice location on file with NPPES is 1304 13th Ave Se, Decatur, AL 35601-4359.
- What is John Shannon's phone number?
- The practice phone number listed in the NPPES registry for John Shannon is (256) 355-9711.
- Does John Shannon accept Medicare?
- John Shannon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Shannon's NPI active?
- Yes — John Shannon's NPI (1437118825) is active in the NPPES registry as of the last update on 2011-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.