NPPES file of Aug 9, 2026

Jack Duncan Parks, MD

Obstetrics Physician · Muskegon, MI

Jack Duncan Parks, MD is an obstetrics physician with a practice address in Muskegon, Michigan, and NPI 1922219666, issued on May 24, 2007. Check the license (Michigan 4301082476, 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
1922219666
Name
Jack Duncan Parks
Credential
MD
Primary taxonomy
Obstetrics Physician 207VX0000X
License number
4301082476 MI
Self-reported in NPPES; status is on the state search
Practice location
1675 Leahy St, Muskegon, MI 49442
Phone
(231) 672-3300
Enumerated
May 24, 2007
Record last updated
Sep 1, 2023
Fax
(231) 672-3380
Medicare enrollment
Enrolled (PECOS I20070913000341); accepts Medicare assignment
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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Also registered at 1675 Leahy St

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

  1. Keith Abraham, NPAdult Health Nurse Practitioner1669098810
  2. David AlvesCommunity Health Worker1811305881
  3. Sara Andrews, DOObstetrics & Gynecology Physician1225440373
  4. Gustav Barkett, DOObstetrics & Gynecology Physician1962494005
  5. Meredith Best, PACPhysician Assistant1023129517
  6. Jessica Cederquist, ATCAthletic Trainer1861456063

Verify Jack Duncan Parks 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 4301082476
    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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56% fewer Medicare Part D claims than the average obstetrics physician in 2024

96 Medicare Part D claims for 40 beneficiaries, against an average of 218 among the 863 providers of this specialty who prescribed in Part D.

  1. Jack Parks96
  2. Specialty average218

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: $268.66

10 payments; by number, the most common kind was food and beverage; the largest payer was Aspira Women's Health Inc. The 679 providers of this specialty with any payment received $826.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jack Parks$268.66
  2. Specialty average$826.19

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

Bills Medicare through 5 group practices

  1. Ascension Medical Group PromedKalamazoo, MI
  2. Lakeshore Community Hospital IncShelby, MI
  3. Mercy Health PartnersShelby, MI
  4. Mercy Health Partners-Obstetrics And Gynecology SpecialistMuskegon, MI
  5. Mercy Women's Health ServicesMuskegon, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jack Duncan Parks among 64 obstetrics physician records in Michigan

Jack Duncan Parks, MD is one of 64 obstetrics physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 25% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2003 · median 2003 among the 36 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in Michigan

There are 64 obstetrics physician records in Michigan.

The 8 obstetrics physician records with the nearest ZIP codes

  1. Carol Markiewicz, D.O.Muskegon, MI 494421801956040
  2. Timothy Murphy, M.D.Ludington, MI 494311487681425
  3. Katherine HoopesGrand Rapids, MI 495031255911095
  4. Bindi Patel, MDGrand Rapids, MI 495031629657762
  5. Cody Campbell, DOWyoming, MI 495191801359690
  6. Sara Schugars, MDBig Rapids, MI 493071629288386
  7. Don Good, MDTraverse City, MI 496841205889060
  8. Douglas McKay, MDTraverse City, MI 496841215980073

Common questions

What is Jack Duncan Parks, MD's NPI number?

Jack Duncan Parks, MD's National Provider Identifier (NPI) is 1922219666, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jack Duncan Parks, MD located?

The NPPES record lists a practice address at 1675 Leahy St, Muskegon, MI, 49442. Phone: (231) 672-3300. Providers update this record themselves, so call before visiting.

How can I verify Jack Duncan Parks, MD's license?

NPPES lists Michigan license number 4301082476, 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 Jack Duncan Parks, MD prescribe under Medicare Part D?

In 2024, Jack Duncan Parks, MD had 96 Medicare Part D claims for 40 beneficiaries; the average among obstetrics physician prescribers was 218. 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.

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.