Daniel John Hammer, M.D.
Ophthalmology Physician · Cincinnati, OH
Daniel John Hammer, M.D. is an ophthalmology physician with a practice address in Cincinnati, Ohio, and NPI 1346575479, issued on Oct 7, 2009. Check the license (Ohio 35.123547, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Daniel John Hammer
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 35.123547 OH
2010012715 MO
Self-reported in NPPES; status is on the state search - Practice location
- 5535 Fair LN Ste C, Cincinnati, OH 45227
- Phone
- (513) 221-5274
- Enumerated
- Oct 7, 2009
- Record last updated
- May 12, 2026
- Fax
- (513) 961-5100
- Medicare enrollment
- Enrolled (PECOS I20141023000489); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 751 in Ohio → Look up another NPI →
Verify Daniel John Hammer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.123547Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average ophthalmology physician in 2024
4,652 Medicare Part D claims for 806 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost1,132 claims
- Dorzolamide-Timolol759 claims
- Prednisolone Acetate411 claims
- Brimonidine Tartrate372 claims
- Lumigan331 claims
- Timolol Maleate299 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 MIPS final score for 2023 (Medicare payment program): 90.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,124.68
37 payments; by number, the most common kind was food and beverage; the largest payer was Axogen. 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
- Cei Physicians Psc, LLCCincinnati, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel John Hammer among 751 ophthalmology physician records in Ohio
Daniel John Hammer, M.D. is one of 751 ophthalmology physician records with a practice address in Ohio. 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 2009, is newer than 69% of them.
- NPI issued2009 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2009 · median 2002 among the 495 with a school on file
- Record last updated2026 · 62% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Ohio
There are 751 ophthalmology physician records in Ohio.
All 751 in Ohio → Every provider in Cincinnati → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Hisham Arar, MDCincinnati, OH 452271609833342
- Haroon Chaudhry, M.D.Cincinnati, OH 452271245432392
- Andrew Robbins, MDCincinnati, OH 452271659308153
- Kara Dolezal, M.D.Cincinnati, OH 452291316388655
- Eniolami Dosunmu, MDCincinnati, OH 452291588810568
- Michael Gray, MDCincinnati, OH 452291700075330
- Linn Mangano, MDCincinnati, OH 452291346241403
- Howard Melvin, MDCincinnati, OH 452291518923101
Common questions
What is Daniel John Hammer, M.D.'s NPI number?
Daniel John Hammer, M.D.'s National Provider Identifier (NPI) is 1346575479, issued on Oct 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Daniel John Hammer, M.D. located?
The NPPES record lists a practice address at 5535 Fair LN Ste C, Cincinnati, OH, 45227. Phone: (513) 221-5274. Providers update this record themselves, so call before visiting.
How can I verify Daniel John Hammer, M.D.'s license?
NPPES lists Ohio license number 35.123547, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Daniel John Hammer, M.D. prescribe under Medicare Part D?
In 2024, Daniel John Hammer, M.D. had 4,652 Medicare Part D claims for 806 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Daniel John Hammer, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.4 of 100. 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.