Jack V Greiner, D.O.

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

56366 Issued in MA

Practice address

5 Whittier PL
Ste 102 Charles River Eye Associates
Boston, MA 02114-1428

Phone

(617) 248-3875

NPI assigned

Jun 1, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

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

Midwestern University, Chicago College of Osteopathic Med, 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Andover Eye Associates IncGroup PAC ID 4486627866, 11 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

74.07 of 100Reported as group

Quality

48.13

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jgreiner@andovereye.intellechartdirect.net
• Direct secure messaging: jgreiner28668@tuftsmedicine.direct-ci.com

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

• Andover Eye Associates, Inc

  • Ophthalmology Physician
  • Andover, MA
  • NPI 1588678551
  Medicare reassignment Care Compare group NPD
• Charles River Eye Associates

  dba Jack V Greiner DBA Charles River Eye Associates

  • Ophthalmology Physician
  • Boston, MA
  • NPI 1821106998
  Medicare reassignment NPD Authorized official
• Charles River Eye Associates

  • Specialist
  • Winchester, MA
  • NPI 1619207487
  NPD (past) Authorized official

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

{
    "created_epoch": "1149120000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1588601280",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 WHITTIER PL",
            "address_2": "STE 102",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021141428",
            "telephone_number": "617-248-3875"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5 WHITTIER PL",
            "address_2": "STE 102 CHARLES RIVER EYE ASSOCIATES",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021141428",
            "telephone_number": "617-248-3875"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREINER",
        "first_name": "JACK",
        "middle_name": "V",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "MA",
            "license": "56366",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Margaret M Gregowicz, M.S., CCC-A
• Abigayle Greier, DPT
• Dan Greif, PSYD
• Astrea Greig, PSY.D.
• Ashley Lauren Greiner, M.D., M.P.H.
• Anna Greka, M.D.
• Marc James Grella, MD
• Jillian C Grelle, PT
• Kyle Grenier, PHARMD, RPH
• Pierre-Olivier Grenier, M.D.

• Ophthalmology Physician in Boston, MA
• Providers in Boston, MA by specialty
• Ophthalmology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.