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RONALD F. WILLIAMSON M.D., P.C.
NPI 1699893453
Family Medicine in Grosse Pointe Farms, MI

Active since March 27, 2007
18348 MACK AVE, GROSSE POINTE FARMS, MI 48236(313) 862-3104(313) 862-1290 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ronald F. Williamson M.d., P.c. NPPES

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

RONALD F. WILLIAMSON M.D., P.C. (NPI 1699893453) is a healthcare organization registered as a family medicine in Grosse Pointe Farms, Michigan and active in the NPI registry since March 2007. The organization lists Ronald Williamson, Owner Family Physician, as its authorized official.

NPPES Registry Identity

NPI1699893453
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameRONALD F. WILLIAMSON M.D., P.C.
Location Address18348 MACK AVEGrosse Pointe Farms, MI 48236-3219
Mailing Address17130 Schaefer HwyDetroit, MI 48235-4131 · (313) 862-3104 · Fax (313) 862-1290
Phone(313) 862-3104
Fax(313) 862-1290
Organization SubpartNo
Authorized OfficialRonald WilliamsonOwner Family Physician · (313) 862-3104
Enumeration DateMarch 27, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1699893453 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
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.
18348 MACK AVE, Grosse Pointe Farms, MI 48236
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ronald F. Williamson M.d., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Ronald F. Williamson M.D., P.C., which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Rochelle Harris, NP
Nurse Practitioner
NPI 1184083974
14507 WOODWARD AVE
Highland Park, MI 48203
(313) 723-6100
✔ PECOS✔ Accepts Medicare9.5 mi
Ronald Williamson, MD
Family Practice
NPI 1659482826
17130 SCHAEFER HWY
Detroit, MI 48235
(313) 862-3104
✔ PECOS✔ Accepts Medicare14 mi
Marcy Binford
Nurse Practitioner
NPI 1629479498
3601 W 13 MILE RD
Royal Oak, MI 48073
(248) 898-1994
✔ PECOS✔ Accepts Medicare16 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Ronald F. Williamson M.D., P.C.'s NPI number?

The NPI number for Ronald F. Williamson M.D., P.C. is 1699893453. It was assigned to this organization in the NPPES registry on March 27, 2007.

Where is Ronald F. Williamson M.D., P.C. located?

Ronald F. Williamson M.D., P.C. is located at 18348 Mack Ave, Grosse Pointe Farms, MI 48236. The listed phone number is (313) 862-3104.

What is Ronald F. Williamson M.D., P.C.'s specialty?

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

Is Ronald F. Williamson M.D., P.C. enrolled in Medicare?

Yes. Ronald F. Williamson M.D., P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ronald F. Williamson M.D., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Ronald F. Williamson M.D., P.C., in Family Practice and Nurse Practitioner. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Ronald F. Williamson M.D., P.C. accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Ronald F. Williamson M.D., P.C. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ronald F. Williamson M.D., P.C. was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.