NPPES file of Aug 9, 2026

John B. Llewelyn, MD

Obstetrics & Gynecology Physician · Saginaw, MI

John B. Llewelyn, MD is an obstetrics & gynecology physician with a practice address in Saginaw, Michigan, and NPI 1942209424, issued on Jul 18, 2005. Check the license (Michigan 4301060216, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942209424
Name
John B. Llewelyn
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
4301060216 MI
JL060216 MI
Self-reported in NPPES; status is on the state search
Practice location
926 N Michigan Ave, Saginaw, MI 48602
Phone
(989) 753-8453
Enumerated
Jul 18, 2005
Record last updated
May 28, 2025
Fax
(989) 753-3519
Medicaid ID
3153175 MI
Medicare enrollment
Enrolled (PECOS I20251007002045); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 1,776 in Michigan → Look up another NPI →

Also registered at 926 N Michigan Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Danielle Bassi, CNMAdvanced Practice Midwife1457022055
  2. Myrtie Biery, CNPObstetrics & Gynecology Nurse Practitioner1851499131
  3. Susanne Brooks, CNMAdvanced Practice Midwife1265410815
  4. Elizabeth Champagne-Edmondson, MDObstetrics & Gynecology Physician1427635283
  5. Celene Cherry, CNM, WHNP-BCAdvanced Practice Midwife1073194155
  6. Amelia Covatto, PA-CPhysician Assistant1245883628

Verify John B. Llewelyn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301060216    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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7% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

177 Medicare Part D claims for 52 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. John Llewelyn177
  2. Specialty average165

Most prescribed

  1. Estradiol48 claims
  2. Progesterone19 claims
  3. Tolterodine Tartrate Er14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $200.03

11 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Llewelyn$200.03
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John B. Llewelyn among 1,776 obstetrics & gynecology physician records in Michigan

John B. Llewelyn, MD is one of 1,776 obstetrics & gynecology physician records with a practice address in Michigan. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1989 · median 2007 among the 1,003 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 obstetrics & gynecology physician records list a practice address in Saginaw

They are 54 of the 6,008 NPPES records with a practice address in Saginaw, and 1,776 obstetrics & gynecology physician records in Michigan.

All 1,776 in Michigan → Every provider in Saginaw → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Angie Domingo, M.D.Saginaw, MI 486021396744876
  2. Frederick Eruo, MDSaginaw, MI 486021952455594
  3. Edwin Galsterer, DOSaginaw, MI 486021689718892
  4. Duane Heilbronn, M.D.Saginaw, MI 486021417956186
  5. James Hines, M.D.Saginaw, MI 486021215936794
  6. Shirley Layko, MDSaginaw, MI 486021679683940
  7. Michelle Liamidi, M.D.Saginaw, MI 486021861661258
  8. Vickie Mello, DOSaginaw, MI 486021013901610

Common questions

What is John B. Llewelyn, MD's NPI number?

John B. Llewelyn, MD's National Provider Identifier (NPI) is 1942209424, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John B. Llewelyn, MD located?

The NPPES record lists a practice address at 926 N Michigan Ave, Saginaw, MI, 48602. Phone: (989) 753-8453. Providers update this record themselves, so call before visiting.

How can I verify John B. Llewelyn, MD's license?

NPPES lists Michigan license number 4301060216, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John B. Llewelyn, MD prescribe under Medicare Part D?

In 2024, John B. Llewelyn, MD had 177 Medicare Part D claims for 52 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.