NPPES file of Aug 9, 2026

Curtis Brian Williams, MD

Internal Medicine Physician · Oklahoma City, OK

Curtis Brian Williams, MD is an internal medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1487658449, issued on Jun 8, 2005. Check the license (Oklahoma 21278, 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
1487658449
Name
Curtis Brian Williams
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
21278 OK
Self-reported in NPPES; status is on the state search
Practice location
3433 NW 56TH St, Oklahoma City, OK 73112
Phone
(405) 946-9831
Enumerated
Jun 8, 2005
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20091212000077); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1998
Telehealth
Offers telehealth (CMS)
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 3433 NW 56TH St

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

  1. Jerome Anderson, MDInterventional Cardiology Physician1265436281
  2. Jeffrey Asbury, MDCardiovascular Disease Physician1528062551
  3. Robert Beckerley, MDHospitalist Physician1639173016
  4. Charles Bethea, MDCardiovascular Disease Physician1528062577
  5. Jon Blaschke, MDInternal Medicine Physician1417096413
  6. Charles Bryant, MDOrthopaedic Surgery Physician1043286776

Verify Curtis Brian Williams 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 21278
    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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2.9 times the Medicare Part D claims of the average internal medicine physician in 2024

9,171 Medicare Part D claims for 609 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 147 claims were for opioids.

  1. Curtis Williams9,171
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium475 claims
  2. Amlodipine Besylate434 claims
  3. Levothyroxine Sodium371 claims
  4. Metformin Hcl266 claims
  5. Omeprazole233 claims
  6. Gabapentin218 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: $72.03

4 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Curtis Williams$72.03
  2. Specialty average$1,303.06

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. Integris Cardiovascular Physicians LLCOklahoma City, OK

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

Curtis Brian Williams among 1,115 internal medicine physician records in Oklahoma

Curtis Brian Williams, MD is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% 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, 89% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1998 · median 2007 among the 653 with a school on file
  • Record last updated2007 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

418 internal medicine physician records list a practice address in Oklahoma City

They are 418 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,115 internal medicine physician records in Oklahoma.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jack Butler, DOOklahoma City, OK 731121316925449
  2. Shabbir Chaudhry Inc, M.D.Oklahoma City, OK 731121487613865
  3. Darlene Foster, MDOklahoma City, OK 731121194717132
  4. Erin Glasgow, MDOklahoma City, OK 731121780621136
  5. Allen Hamaker, MDOkc, OK 731121326028663
  6. Kristopher Lepere, D.O.Oklahoma City, OK 731121568461317
  7. Long Nguyen, M.D.Oklahoma City, OK 731121811956006
  8. Neena Philip, MDOklahoma City, OK 731121346244365

Common questions

What is Curtis Brian Williams, MD's NPI number?

Curtis Brian Williams, MD's National Provider Identifier (NPI) is 1487658449, issued on Jun 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Curtis Brian Williams, MD located?

The NPPES record lists a practice address at 3433 NW 56TH St, Oklahoma City, OK, 73112. Phone: (405) 946-9831. Providers update this record themselves, so call before visiting.

How can I verify Curtis Brian Williams, MD's license?

NPPES lists Oklahoma license number 21278, 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 Curtis Brian Williams, MD prescribe under Medicare Part D?

In 2024, Curtis Brian Williams, MD had 9,171 Medicare Part D claims for 609 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.