NPPES file of Aug 9, 2026

Mark A. Fergeson, MD

Pediatrics Physician · Oklahoma City, OK

Mark A. Fergeson, MD is a pediatrics physician with a practice address in Oklahoma City, Oklahoma, and NPI 1073581245, issued on Mar 14, 2006. Check the license (Oklahoma 20781, 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
1073581245
Name
Mark A. Fergeson
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
20781 OK
Self-reported in NPPES; status is on the state search
Practice location
1200 N Phillips Ave, Oklahoma City, OK 73104
Phone
(405) 271-6827
Enumerated
Mar 14, 2006
Record last updated
Jan 19, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(405) 271-4418
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1200 N Phillips Ave

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

  1. Jill Adler, MDPediatrics Physician1184877045
  2. Muhammad Altaf, M.D.Pediatric Gastroenterology Physician1871511733
  3. Ashley Baker, MDPediatric Hematology & Oncology Physician1518100882
  4. Sherri Baker, MDPediatric Cardiology Physician1710955026
  5. Piers Blackett, MDPediatric Endocrinology Physician1730157348
  6. Karen Bowlware, MDPediatrics Physician1881662419

Verify Mark A. Fergeson 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 20781
    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

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94% fewer Medicare Part D claims than the average pediatrics physician in 2024

22 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Mark Fergeson22
  2. Specialty average375

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: $34.33

2 payments; by number, the most common kind was food and beverage; the largest payer was Cranial Technologies, Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Fergeson$34.33
  2. Specialty average$842.05

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

280 pediatrics physician records list a practice address in Oklahoma City

They are 280 of the 22,359 NPPES records with a practice address in Oklahoma City, and 707 pediatrics physician records in Oklahoma.

Other pediatrics physician records in Oklahoma

  1. Noor Jihan Abdul-Haqq, M.D.Del City, OK1659528750
  2. Shalini AbeyewardeneOklahoma City, OK1134895329
  3. Karim Aboelsoud, MDOklahoma City, OK1427832138
  4. Manoj Abraham, DOOklahoma City, OK1457841223
  5. Mo'Tasem Abujaber, MDOklahoma City, OK1225920762
  6. Hend Aburumh, M.D.Oklahoma City, OK1891542676
  7. Alana Adair, MDOklahoma City, OK1841209137
  8. Jana Adams, M.D.Norman, OK1982784880
  9. Fausat Adediji, M.D.Tulsa, OK1629206941
  10. Jill Adler, MDOklahoma City, OK1184877045

Common questions

What is Mark A. Fergeson, MD's NPI number?

Mark A. Fergeson, MD's National Provider Identifier (NPI) is 1073581245, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Fergeson, MD located?

The NPPES record lists a practice address at 1200 N Phillips Ave, Oklahoma City, OK, 73104. Phone: (405) 271-6827. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Fergeson, MD's license?

NPPES lists Oklahoma license number 20781, 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 Mark A. Fergeson, MD prescribe under Medicare Part D?

In 2024, Mark A. Fergeson, MD had 22 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.