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DR. JOHN ROBERT CLARK M.D.
NPI 1457353575
Obstetrics & Gynecology in Coldwater, MI

Active since August 10, 2005PECOS EnrolledAccepts Medicare Assignment
370 E CHICAGO ST STE 400, COLDWATER, MI 49036(517) 279-8465(517) 279-8665 Get Directions Write a Review

NPPES record last updated: August 18, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 18, 2026, Aug 12, 2024 (2 updates tracked since 2024).

About Dr. John Robert Clark M.d. NPPES

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

DR. JOHN ROBERT CLARK M.D. (NPI 1457353575) is an individual obstetrics & gynecology provider in Coldwater, Michigan, licensed in Michigan (4301062758) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Promedica Coldwater Regional Hospital, and is a graduate of University Of Kentucky College Of Medicine (1984).

NPPES Registry Identity

NPI1457353575
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. JOHN ROBERT CLARKCredential: M.D.
Location Address370 E CHICAGO ST STE 400Coldwater, MI 49036-2062
Mailing Address274 E Chicago StColdwater, MI 49036-2041 · (517) 279-8465
Phone(517) 279-8465
Fax(517) 279-8665
Sole ProprietorYes
Medical School CMSUniversity Of Kentucky College Of MedicineGraduated 1984
Enumeration DateAugust 10, 2005
Last NPPES UpdateAugust 18, 20262 updates tracked since enumeration
NPPES CertifiedAugust 18, 2026
✔ NPI 1457353575 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in MI · 4301062758✔ Licensed in ND · 6766✔ Licensed in IN · 01044745A
Definition
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.
370 E CHICAGO ST STE 400, Coldwater, MI 49036
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Other Identifiers 4

Medicaid3044976MI
Other1607527581MI · Blue Cross Blue Shield
OtherP89384MI · Blue Care Network
Other07-30237MI · Iba/php

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, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John Robert Clark M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264342930
PECOS Enrollment IDI20101208000422
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show John Clark reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Community Health Center Of Branch County
1.3 mi
Obstetrics & Gynecology
235 E CHICAGO ST
Coldwater, MI 49036
  • Reassigned Medicare billing, Michigan enrollment
  • 174 clinicians in this Medicare group
NPI 1801264759 (517) 279-5400

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Promedica Coldwater Regional Hospital

Acute Care Hospitals · Coldwater, MI
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number230022
Location274 E Chicago StColdwater, MI 49036 · Branch County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49036 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 John Clark's NPI number?

The NPI number for John Clark is 1457353575. It was assigned to this individual provider in the NPPES registry on August 10, 2005.

Where is John Clark located?

John Clark practices at 370 E Chicago St Ste 400, Coldwater, MI 49036. The listed phone number is (517) 279-8465.

What is John Clark's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is John Clark enrolled in Medicare?

Yes. John Clark is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for John Clark's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Clark reassigns Medicare benefits to Community Health Center Of Branch County (Coldwater, MI). The 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 John Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Clark accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list John Clark 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.

Is John Clark affiliated with any hospitals?

According to CMS data, John Clark is affiliated with Promedica Coldwater Regional Hospital.

When was this NPI record last updated?

The NPPES record for John Clark was last updated on August 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.