NPPES file of Aug 9, 2026

Mary Dianne Chambers, MD

Obstetrics & Gynecology Physician · Norman, OK

Mary Dianne Chambers, MD is an obstetrics & gynecology physician with a practice address in Norman, Oklahoma, and NPI 1790737674, issued on May 17, 2006. Check the license (Oklahoma 20216, 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
1790737674
Name
Mary Dianne Chambers
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
20216 OK
L0263 TX
Self-reported in NPPES; status is on the state search
Practice location
3440 RC Luttrell Dr Ste 200, Norman, OK 73072
Phone
(405) 360-1264
Enumerated
May 17, 2006
Record last updated
Nov 8, 2024
Fax
(405) 321-8683
Medicare enrollment
Enrolled (PECOS I20090724000083); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1996
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 3440 RC Luttrell Dr Ste 200

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

  1. Robin Antosh, APRN-CNPFamily Nurse Practitioner1285293175
  2. Heather Bulloch, CNPFamily Nurse Practitioner1962985861
  3. Lilly Ferrell, A.R.N.P.Women's Health Nurse Practitioner1730416934
  4. Daphne Lashbrook, M.D.Specialist1538162979
  5. Mary Nixon, MDObstetrics & Gynecology Physician1003307935
  6. Leslie Ollar-Shoemake, D.O.Obstetrics & Gynecology Physician1740283175

Verify Mary Dianne Chambers 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 20216
    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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93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

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

  1. Mary Chambers11
  2. Specialty average165

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: $536.04

28 payments; by number, the most common kind was food and beverage; the largest payer was Mayne Pharma Commercial LLC. 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. Mary Chambers$536.04
  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.

Bills Medicare through one group practice

  1. Norman Regional Providers Specialty CareNorman, OK

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

Mary Dianne Chambers among 438 obstetrics & gynecology physician records in Oklahoma

Mary Dianne Chambers, MD is one of 438 obstetrics & gynecology physician records with a practice address in Oklahoma. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 50% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1996 · median 2006 among the 267 with a school on file
  • Record last updated2024 · 58% 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 Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Oklahoma

There are 438 obstetrics & gynecology physician records in Oklahoma.

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

  1. Shelba Bethel, MDNorman, OK 730721780625756
  2. Lesa Bethel Mulligan, MDNorman, OK 730721255395984
  3. Kimberly Bowman, MDNorman, OK 730721346384542
  4. William Gideon, WILLIAMNorman, OK 730721902387475
  5. Rebecca Graham, D.ONorman, OK 730721245211846
  6. Jessica Hinojosa, D.O.Norman, OK 730721124311030
  7. Mary Nixon, MDNorman, OK 730721003307935
  8. Leslie Ollar-Shoemake, D.O.Norman, OK 730721740283175

Common questions

What is Mary Dianne Chambers, MD's NPI number?

Mary Dianne Chambers, MD's National Provider Identifier (NPI) is 1790737674, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Dianne Chambers, MD located?

The NPPES record lists a practice address at 3440 RC Luttrell Dr Ste 200, Norman, OK, 73072. Phone: (405) 360-1264. Providers update this record themselves, so call before visiting.

How can I verify Mary Dianne Chambers, MD's license?

NPPES lists Oklahoma license number 20216, 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 Mary Dianne Chambers, MD prescribe under Medicare Part D?

In 2024, Mary Dianne Chambers, MD had 11 Medicare Part D claims; 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.

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.