Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. RUTH ANN BUCK M.D
NPI 1124087804
Family Medicine in Saginaw, MI

Q: What is Ruth Ann Buck's NPI number?

The NPI number for Ruth Ann Buck is 1124087804. It was assigned to this individual provider in the NPPES registry on March 21, 2006.

Q: What is Ruth Ann Buck's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Ruth Ann Buck was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 21, 2006

5820 GRATIOT RD, STE B, SAGINAW, MI 48638(989) 797-2825 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Jul 21, 2022, Nov 5, 2021 (3 updates tracked since 2021).

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About Dr. Ruth Ann Buck M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RUTH ANN BUCK M.D (NPI 1124087804) is an individual family medicine provider in Saginaw, Michigan, licensed in Michigan (4301074828) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1124087804

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. RUTH ANN BUCKCredential: M.D

Location Address5820 GRATIOT RD, STE BSaginaw, MI 48638-6064

Mailing Address5820 Gratiot Rd, Ste BSaginaw, MI 48638-6064 · (989) 797-2825

Phone(989) 797-2825

Sole ProprietorNo

Enumeration DateMarch 21, 2006

Last NPPES UpdateJuly 13, 20263 updates tracked since enumeration

✔ NPI 1124087804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in MI · 4301074828

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

5820 GRATIOT RD, Saginaw, MI 48638

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Other Identifiers 4

Other7035371MI · Aetna

Medicaid4411499MI

Other0807311482MI · Blue Cross

Other0807311482MI · Blue Care Network

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ruth Ann Buck's NPI number?

The NPI number for Ruth Ann Buck is 1124087804. It was assigned to this individual provider in the NPPES registry on March 21, 2006.

Where is Ruth Ann Buck located?

Ruth Ann Buck practices at 5820 Gratiot Rd Ste B, Saginaw, MI 48638. The listed phone number is (989) 797-2825.

What is Ruth Ann Buck's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for Ruth Ann Buck was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.