Karen S. Maluf, MD
Internal Medicine Physician · Chickasha, OK
Karen S. Maluf, MD is an internal medicine physician with a practice address in Chickasha, Oklahoma, and NPI 1689658601, issued on Dec 2, 2005. Check the license (Oklahoma 20779, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Karen S. Maluf
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20779 OK
Self-reported in NPPES; status is on the state search - Practice location
- 2222 W Iowa Ave, Chickasha, OK 73018
- Phone
- (405) 224-8111
- Enumerated
- Dec 2, 2005
- Record last updated
- Jun 28, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (405) 222-9561
- Medicaid ID
- 100147280A OK
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 2222 W Iowa Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen S. Maluf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 20779Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
314 Medicare Part D claims for 104 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium20 claims
- Lisinopril17 claims
- Citalopram Hbr14 claims
- Levothyroxine Sodium14 claims
- Allopurinol12 claims
- Amlodipine Besylate11 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: $14.36
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Karen S. Maluf among 1,115 internal medicine physician records in Oklahoma
Karen S. Maluf, 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 fileNo · 59% of these records are
- Record last updated2016 · 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).
5 internal medicine physician records list a practice address in Chickasha
They are 5 of the 354 NPPES records with a practice address in Chickasha, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Chickasha → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anupama Bekkem, M.D.Chickasha, OK 730181326074485
- Thomas Essex, D.O.Chickasha, OK 730181689603151
- Ross Fisher, MDChickasha, OK 730181568403087
- John Vallandigham, M.D.Chickasha, OK 730181265438501
- Abraham Garcia Ortega, MDNorman, OK 730191336737691
- Micheal MontgomeryCement, OK 730171588450662
- Audrey Goodwin, MDEdmond, OK 730131952661688
- Daniel Lee, MDEdmond, OK 730131336124056
Common questions
What is Karen S. Maluf, MD's NPI number?
Karen S. Maluf, MD's National Provider Identifier (NPI) is 1689658601, issued on Dec 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karen S. Maluf, MD located?
The NPPES record lists a practice address at 2222 W Iowa Ave, Chickasha, OK, 73018. Phone: (405) 224-8111. Providers update this record themselves, so call before visiting.
How can I verify Karen S. Maluf, MD's license?
NPPES lists Oklahoma license number 20779, 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 Karen S. Maluf, MD prescribe under Medicare Part D?
In 2024, Karen S. Maluf, MD had 314 Medicare Part D claims for 104 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.