Christopher Hapner
Emergency Medicine Physician · Ann Arbor, MI
Christopher Hapner is an emergency medicine physician with a practice address in Ann Arbor, Michigan, and NPI 1891175865, issued on Jun 4, 2015. Check the license (Michigan 5101021903, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Christopher Hapner
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 5101021903 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E. Medical Center Drive, Ann Arbor, MI 48109
- Phone
- (734) 763-7919
- Enumerated
- Jun 4, 2015
- Record last updated
- Jul 3, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (734) 763-9298
- Medicare enrollment
- Enrolled (PECOS I20190806004290); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1500 E. Medical Center Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ruth AngrandInternal Medicine Physician1629655170
- Merrick BankStudent in an Organized Health Care Education/Training Program1255275962
- Raymond Blush, ACNPNurse Practitioner1801934039
Verify Christopher Hapner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101021903Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average emergency medicine physician in 2024
354 Medicare Part D claims for 227 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 39 claims were for opioids.
Most prescribed
- Cephalexin55 claims
- Prednisone40 claims
- Hydrocodone-Acetaminophen37 claims
- Azithromycin31 claims
- Amoxicillin-Clavulanate Potass28 claims
- Ondansetron Odt24 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: $125.00
1 payment: food and beverage; the largest payer was Axsome Therapeutics, Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- Emergency Physicians OF Northwest Ohio, Inc.Toledo, OH
- The Toledo HospitalToledo, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Hapner among 3,083 emergency medicine physician records in Michigan
Christopher Hapner is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 59% of them.
- NPI issued2015 · 59% of these records are older, 38% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2013 among the 1,931 with a school on file
- Record last updated2019 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
236 emergency medicine physician records list a practice address in Ann Arbor
They are 236 of the 15,616 NPPES records with a practice address in Ann Arbor, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Ann Arbor → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ginette Busschots, MDAnn Arbor, MI 481091821028838
- Susanne Demeester, MDAnn Arbor, MI 481091316980196
- Jeffrey Freeman, MDAnn Arbor, MI 481091881624898
- Kyle Gunnerson, MDAnn Arbor, MI 481091447361456
- Andrew Hashikawa, M.D.Ann Arbor, MI 481091528046810
- Shaun Huang, MDAnn Arbor, MI 481091669415360
- William Meurer, MDAnn Arbor, MI 481091942234042
- Robert Neumar, MDAnn Arbor, MI 481091023058013
Common questions
What is Christopher Hapner's NPI number?
Christopher Hapner's National Provider Identifier (NPI) is 1891175865, issued on Jun 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Hapner located?
The NPPES record lists a practice address at 1500 E. Medical Center Drive, Ann Arbor, MI, 48109. Phone: (734) 763-7919. Providers update this record themselves, so call before visiting.
How can I verify Christopher Hapner's license?
NPPES lists Michigan license number 5101021903, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher Hapner prescribe under Medicare Part D?
In 2024, Christopher Hapner had 354 Medicare Part D claims for 227 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.