Christopher Greenhagen, PA-C
Physician Assistant · Newkirk, OK
Christopher Greenhagen, PA-C is a physician assistant with a practice address in Newkirk, Oklahoma, and NPI 1356764195, issued on Jan 30, 2014. Check the license (Oklahoma 2378, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christopher Greenhagen
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2378 OK
Self-reported in NPPES; status is on the state search - Practice location
- 716 S Highway 77, Newkirk, OK 74647
- Phone
- (580) 362-2555
- Enumerated
- Jan 30, 2014
- Record last updated
- Sep 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (580) 362-2948
- Medicaid ID
- 200530330A OK
- Medicare enrollment
- Enrolled (PECOS I20140327001758); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,870 in Oklahoma → Look up another NPI →
Also registered at 716 S Highway 77
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Brock, LCSWClinical Social Worker1780949883
- Sharolyn Burton, DDSDentist1043706641
- Lela Goatley, ARNPFamily Nurse Practitioner1407008816
- Trenton Howard, MDGeneral Practice Physician1215553102
- Laurie McLemore, M.D.Family Medicine Physician1730234139
- Sharon Stewart, APRN-CNPNurse Practitioner1275508749
Verify Christopher Greenhagen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 2378Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average physician assistant in 2024
2,904 Medicare Part D claims for 154 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 97 claims were for opioids.
Most prescribed
- Atorvastatin Calcium152 claims
- Amlodipine Besylate112 claims
- Omeprazole106 claims
- Carvedilol98 claims
- Meloxicam96 claims
- Lisinopril94 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: $58.51
2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 64,719 providers of this specialty with any payment received $841.65 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 2 group practices
- Bradley Bibb MD PLLCPonca City, OK
- Triad Health Systems LLCPonca City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Greenhagen among 1,870 physician assistant records in Oklahoma
Christopher Greenhagen, PA-C is one of 1,870 physician assistant records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 44% of them.
- NPI issued2014 · 44% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2013 · median 2017 among the 1,246 with a school on file
- Record last updated2019 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 physician assistant record lists a practice address in Newkirk
They are 1 of the 17 NPPES records with a practice address in Newkirk, and 1,870 physician assistant records in Oklahoma.
All 1,870 in Oklahoma → Every provider in Newkirk → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Willie Street, P.A.-CTonkawa, OK 746531215005244
- Sarah Ben, PA-CFairfax, OK 746371588301733
- Deanna Cummings, PA-CFairfax, OK 746371841274271
- Elmer Owens, P.A.Fairfax, OK 746371679613970
- Kelsey Burnett, PA-CBlackwell, OK 746311275959314
- Parnell Adams, PA-CPonca City, OK 746011801810783
- Taelor Baetz, PAPonca City, OK 746011881385656
- Lee Simpson, PA-CPonca City, OK 746011467677492
Common questions
What is Christopher Greenhagen, PA-C's NPI number?
Christopher Greenhagen, PA-C's National Provider Identifier (NPI) is 1356764195, issued on Jan 30, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Greenhagen, PA-C located?
The NPPES record lists a practice address at 716 S Highway 77, Newkirk, OK, 74647. Phone: (580) 362-2555. Providers update this record themselves, so call before visiting.
How can I verify Christopher Greenhagen, PA-C's license?
NPPES lists Oklahoma license number 2378, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Christopher Greenhagen, PA-C prescribe under Medicare Part D?
In 2024, Christopher Greenhagen, PA-C had 2,904 Medicare Part D claims for 154 beneficiaries; the average among physician assistant prescribers was 830. 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.