Christine Callahan, MD
Ophthalmology Physician · Hershey, PA
Christine Callahan, MD is an ophthalmology physician with a practice address in Hershey, Pennsylvania, and NPI 1811910581, issued on Jul 25, 2006. Check the license (Pennsylvania MD437982, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Christine Callahan
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- MD437982 PA
ME87870 FL
Self-reported in NPPES; status is on the state search - Practice location
- 500 University Dr, Hershey, PA 17033
- Phone
- (717) 531-5690
- Enumerated
- Jul 25, 2006
- Record last updated
- Apr 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (717) 531-5009
- Medicaid IDs
- 1024918690001 PA
267976100 FL - Medicare enrollment
- Enrolled (PECOS I20101025000662); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,088 in Pennsylvania → Look up another NPI →
Also registered at 500 University Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Andrea Abbe, LDNRegistered Dietitian1366623795
- Mahdi Abdallah, MDStudent in an Organized Health Care Education/Training Program1497457360
- Ashraf Abdelhalim, MDAnesthesiology Physician1356931729
Verify Christine Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD437982Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average ophthalmology physician in 2024
2,373 Medicare Part D claims for 417 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Latanoprost609 claims
- Dorzolamide-Timolol317 claims
- Timolol Maleate252 claims
- Prednisolone Acetate192 claims
- Brimonidine Tartrate121 claims
- Moxifloxacin104 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 71.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,418.48
1 payment: debt forgiveness; the largest payer was Carl Zeiss Meditec Digital Innovations LLC. The 13,221 providers of this specialty with any payment received $4,535.02 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
- The Milton S Hershey Medical Center Physicians GroupHershey, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christine Callahan among 1,088 ophthalmology physician records in Pennsylvania
Christine Callahan, MD is one of 1,088 ophthalmology physician records with a practice address in Pennsylvania. 81% 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 22% of them.
- NPI issued2006 · 22% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1999 · median 2000 among the 734 with a school on file
- Record last updated2017 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Pennsylvania
There are 1,088 ophthalmology physician records in Pennsylvania.
All 1,088 in Pennsylvania → Every provider in Hershey → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Ali Aminlari, MDHershey, PA 170331093779274
- Esther Bowie, MDHershey, PA 170331942316278
- William Cantore, MDHershey, PA 170331174587018
- Matthew Goldman, MDHershey, PA 170331285618520
- Kimberly Neely, MDHershey, PA 170331215991401
- George Papachristou, M.D.Hershey, PA 170331003077975
- David Quillen, MDHershey, PA 170331699739870
- Joseph Sassani, MDHershey, PA 170331518921451
Common questions
What is Christine Callahan, MD's NPI number?
Christine Callahan, MD's National Provider Identifier (NPI) is 1811910581, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christine Callahan, MD located?
The NPPES record lists a practice address at 500 University Dr, Hershey, PA, 17033. Phone: (717) 531-5690. Providers update this record themselves, so call before visiting.
How can I verify Christine Callahan, MD's license?
NPPES lists Pennsylvania license number MD437982, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christine Callahan, MD prescribe under Medicare Part D?
In 2024, Christine Callahan, MD had 2,373 Medicare Part D claims for 417 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Christine Callahan, MD's MIPS final score?
The 2023 MIPS final score is 71.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.