Stephen P. Zacker, MD
Anesthesiology Physician · Oklahoma City, OK
Stephen P. Zacker, MD is an anesthesiology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1861421273, issued on Jun 30, 2006. Check the license (Oklahoma 20192, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Stephen P. Zacker
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 20192 OK
Self-reported in NPPES; status is on the state search - Practice location
- 3100 SW 89TH St, Oklahoma City, OK 73159
- Phone
- (405) 602-8100
- Enumerated
- Jun 30, 2006
- Record last updated
- Jul 21, 2022
- Medicaid ID
- 100138260A OK
- Medicare enrollment
- Enrolled (PECOS I20051109000573); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 611 in Oklahoma → Look up another NPI →
Also registered at 3100 SW 89TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tracy Adams, MSWSocial Worker1356529259
- Phillip Doerner, MDAnesthesiology Physician1619937406
- Sarah Duke, CRNACertified Registered Nurse Anesthetist1174906994
- Angela Gainer, NPNurse Practitioner1275159634
- Meredith Jackson, CRNACertified Registered Nurse Anesthetist1952872277
- Kathy Johnson-Turner, D.O.Anesthesiology Physician1831238138
Verify Stephen P. Zacker 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 20192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $22.26
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 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.
Bills Medicare through one group practice
- Hpi Physicians LLCOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen P. Zacker among 611 anesthesiology physician records in Oklahoma
Stephen P. Zacker, MD is one of 611 anesthesiology physician records with a practice address in Oklahoma. 74% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 50% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1993 · median 2005 among the 402 with a school on file
- Record last updated2022 · 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 207L00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
359 anesthesiology physician records list a practice address in Oklahoma City
They are 359 of the 22,359 NPPES records with a practice address in Oklahoma City, and 611 anesthesiology physician records in Oklahoma.
All 611 in Oklahoma → Every provider in Oklahoma City → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Bart Borsky, MDOklahoma City, OK 731591407818453
- Phillip Doerner, MDOklahoma City, OK 731591619937406
- Kathy Johnson-Turner, D.O.Oklahoma City, OK 731591831238138
- Natasha Knowlton, DOOklahoma City, OK 731591346484607
- Tanya Maclaren, D.O.Oklahoma City, OK 731591063400141
- Grant Mauldin, MDOklahoma City, OK 731591972590453
- Kenneth Priest, MDOklahoma City, OK 731591427046135
- Lawrence Roy, M.D.Oklahoma City, OK 731591366426314
Common questions
What is Stephen P. Zacker, MD's NPI number?
Stephen P. Zacker, MD's National Provider Identifier (NPI) is 1861421273, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen P. Zacker, MD located?
The NPPES record lists a practice address at 3100 SW 89TH St, Oklahoma City, OK, 73159. Phone: (405) 602-8100. Providers update this record themselves, so call before visiting.
How can I verify Stephen P. Zacker, MD's license?
NPPES lists Oklahoma license number 20192, 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.
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.