Daniel John Hammer, M.D.

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

35.123547 Issued in OH

Practice address

5535 Fair LN Ste C
Cincinnati, OH 45227-3440

Phone

(513) 221-5274

Fax

(513) 961-5100

NPI assigned

Oct 7, 2009

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in OH

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Ophthalmology

Education

Ohio State University College of Medicine, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cei Physicians PSC, LLCGroup PAC ID 0749186427, 155 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Bethesda North Hospital, Cincinnati, OH, CCN 360179

Merit-based Incentive Payment System (MIPS)

Final score

93.01 of 100Reported as apm

Quality

86.02

Promoting interoperability

100

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Cei Physicians PSC LLC

  • Ophthalmology Physician
  • Cincinnati, OH
  • NPI 1942296298
  Medicare reassignment Care Compare group NPD
• University of Cincinnati Physicians Company, LLC

  • Family Medicine Physician
  • Cincinnati, OH
  • NPI 1801840434
  Medicare reassignment
• Cei Physicians PSC, LLC

  • Ambulatory Surgical Clinic/Center
  • Richmond Heights, OH
  • NPI 1891406328
  NPD
• Cei Physicians PSC LLC

  • Ophthalmologic Surgery Clinic/Center
  • Blue Ash, OH
  • NPI 1790772804
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Bethesda Hospital Inc

  • General Acute Care Hospital
  • Cincinnati, OH
  • NPI 1396714663
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1254873600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778544000000",
    "number": "1346575479",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5535 FAIR LN STE C",
            "city": "CINCINNATI",
            "state": "OH",
            "postal_code": "452273440",
            "telephone_number": "513-221-5274",
            "fax_number": "513-961-5100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5535 FAIR LN STE C",
            "city": "CINCINNATI",
            "state": "OH",
            "postal_code": "452273440",
            "telephone_number": "513-221-5274",
            "fax_number": "513-961-5100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3188 Bellevue Ave",
            "address_purpose": "LOCATION",
            "city": "Cincinnati",
            "state": "OH",
            "postal_code": "452192369",
            "country_code": "US",
            "telephone_number": "513-475-8890",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAMMER",
        "first_name": "DANIEL",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2009-10-07",
        "last_updated": "2026-05-12",
        "certification_date": "2026-05-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "MO",
            "license": "2010012715",
            "primary": false
        },
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "OH",
            "license": "35.123547",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "OH MEDICAL LICENSE",
            "identifier": "35.123547",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mari Catherine Hamm, APRN
• Teconnia Hamm
• Tiffaney Lynn Hamm
• Ellen Marie Hammann, RPH
• Brienna Hammer
• Heather Nicole Hammer, APRN
• Theresa J Hammer, AUD
• Elizabeth Hammersmith
• Hunter Marian Hammersmith
• Lisa Marie Hammersmith, MA

• Ophthalmology Physician in Cincinnati, OH
• Providers in Cincinnati, OH by specialty
• Ophthalmology Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.