JOHN GARRETT LLEWELYN MD
NPI 1326497066
Obstetrics & Gynecology in Saginaw, MI
About John Garrett Llewelyn Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN GARRETT LLEWELYN MD (NPI 1326497066) is an individual obstetrics & gynecology provider in Saginaw, Michigan, licensed in Michigan (4301506644) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Covenant Medical Center, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Garrett Llewelyn Md 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Covenant Medical Center
Acute Care Hospitals · Saginaw, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48602 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Llewelyn's NPI number?
The NPI number for John Llewelyn is 1326497066. It was assigned to this individual provider in the NPPES registry on June 3, 2016.
Where is John Llewelyn located?
John Llewelyn practices at 1000 Houghton Ave, Saginaw, MI 48602. The listed phone number is (989) 746-7500.
What is John Llewelyn's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is John Llewelyn enrolled in Medicare?
Yes. John Llewelyn 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.
What insurance does John Llewelyn accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, McLaren Health Plan Community and Priority Health list John Llewelyn 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 Llewelyn affiliated with any hospitals?
According to CMS data, John Llewelyn is affiliated with Covenant Medical Center.
When was this NPI record last updated?
The NPPES record for John Llewelyn was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# John Garrett Llewelyn, MD · NPI 1326497066
Obstetrics & Gynecology physician in Saginaw, Michigan. Individual provider, active in the CMS NPPES registry since June 3, 2016.
## Identity
- **NPI:** 1326497066 (Entity type: Individual)
- **Enumerated:** June 3, 2016
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 4301506644 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 HOUGHTON AVE, Saginaw, MI 48602-5303
- **Phone:** (989) 746-7500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Wayne State University School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** January 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1326497066) · Data from the CMS NPPES public registry.