NPPES file of Aug 9, 2026

Margaret Jean Hart, D.O

Family Medicine Physician · Muskogee, OK

Margaret Jean Hart, D.O is a family medicine physician with a practice address in Muskogee, Oklahoma, and NPI 1942426689, issued on Apr 18, 2007. Check the license (Oklahoma 9069, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; 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
1942426689
Name
Margaret Jean Hart
Credential
D.O
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
9069 OK
5101016975 MI
51O1016975 MI
54437 MN
Self-reported in NPPES; status is on the state search
Practice location
3332 W Okmulgee St, Muskogee, OK 74401
Phone
(918) 682-2481
Enumerated
Apr 18, 2007
Record last updated
Aug 8, 2025
Fax
(918) 682-2932
Medicare enrollment
Enrolled (PECOS I20220222001779); accepts Medicare assignment
Medical or professional school
Oklahoma State University College Of Osteopathic Medicine, 2006
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 3332 W Okmulgee St

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

  1. David Kyger, M.D.Internal Medicine Physician1730126210
  2. Emma Savidge, M.D.Family Medicine Physician1427688712
  3. Isabel Vega, M.D.Rheumatology Physician1316073430

Verify Margaret Jean Hart in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 9069
    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 Oklahoma license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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84% fewer Medicare Part D claims than the average family medicine physician in 2024

569 Medicare Part D claims for 74 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Margaret Hart569
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium46 claims
  2. Amlodipine Besylate29 claims
  3. Atorvastatin Calcium28 claims
  4. Telmisartan28 claims
  5. Rosuvastatin Calcium26 claims
  6. Hydrochlorothiazide24 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: $58.99

3 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Margaret Hart$58.99
  2. Specialty average$902.55

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

Bills Medicare through 2 group practices

  1. Immaculate Heart OF Mary Family Health CenterChandler, AZ
  2. Warren Clinic IncMuskogee, OK

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

Margaret Jean Hart among 2,303 family medicine physician records in Oklahoma

Margaret Jean Hart, D.O is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% 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 47% of them.

  • NPI issued2007 · 47% of these records are older, 46% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2006 · median 2008 among the 1,407 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 family medicine physician records list a practice address in Muskogee

They are 31 of the 1,769 NPPES records with a practice address in Muskogee, and 2,303 family medicine physician records in Oklahoma.

The 8 family medicine physician records with the nearest ZIP codes

  1. James Beebe, M.D.Muskogee, OK 744011407047723
  2. Jason Dansby, MDMuskogee, OK 744011437151578
  3. John Fell, DOMuskogee, OK 744011629091640
  4. Jesse Geren, DOMuskogee, OK 744011679578397
  5. Michael Hammond, MDMuskogee, OK 744011104861616
  6. Lynn McClintock, M.D.Muskogee, OK 744011366411282
  7. Brad McIntosh, MDMuskogee, OK 744011659373819
  8. Christopher Mitchell, M.D.Muskogee, OK 744011992770796

Common questions

What is Margaret Jean Hart, D.O's NPI number?

Margaret Jean Hart, D.O's National Provider Identifier (NPI) is 1942426689, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Jean Hart, D.O located?

The NPPES record lists a practice address at 3332 W Okmulgee St, Muskogee, OK, 74401. Phone: (918) 682-2481. Providers update this record themselves, so call before visiting.

How can I verify Margaret Jean Hart, D.O's license?

NPPES lists Oklahoma license number 9069, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Margaret Jean Hart, D.O prescribe under Medicare Part D?

In 2024, Margaret Jean Hart, D.O had 569 Medicare Part D claims for 74 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.