Individual Healthcare Provider
John Whitney Mercer, MD
Provider's NPPES record last updated: September 2, 2025
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1205988540
- Primary Specialty
- Obstetrics & Gynecology
- Practice Location
- Nampa, Idaho
- Sole Proprietor
- Yes
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 20, 2026, 4:27 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Obstetrics & Gynecology
Allopathic & Osteopathic Physicians
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Taxonomy code 207V00000X
Provider-Reported License Information
- Obstetrics & Gynecology (Idaho)
- 3971468
- Obstetrics & Gynecology (Louisiana)
- L023779
- Obstetrics & Gynecology (Colorado)
- CDR.0000210
Practice Locations
Practice Location
4424 E Flamingo Ave Ste 200
Nampa, Idaho 83687-9300
Phone: (208) 302-1400
Additional Practice Location
715 S 3rd St
Montrose, Colorado 81401-4209
Phone: (970) 249-6737
Fax: (970) 252-0112
Additional Practice Location
900 S 4th St
Montrose, Colorado 81401-4226
Phone: (970) 249-6737
Fax: (970) 252-0112
Record Information
- Enumeration Date
- January 17, 2007
- Provider's NPPES Record Last Updated
- September 2, 2025
- Certification Date
- September 2, 2025
- NPISignal NPPES Dataset
- August 2026
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