Gregory J Streff, DO

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

5101008684 Issued in MI

Practice address

9450 S Saginaw Rd
Suite E
Grand Blanc, MI 48439-8206

Phone

(810) 695-4000

Fax

(810) 695-4055

NPI assigned

May 18, 2006

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

Other identifiers 4

Medicare fee-for-service enrollment

Enrolled in MI

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

Merit-based Incentive Payment System (MIPS)

Final score

82.58 of 100Reported as group

Quality

58.15

Promoting interoperability

100

Improvement activities

40

Cost

74.45

Merit-based Incentive Payment System (MIPS)

Final score

25.47 of 100Reported as individual

Quality

0

Improvement activities

0

Cost

84.91

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gregorystreff@mlccs.allscriptsdirect.net
• Direct secure messaging: gstreff1154737@direct.hfhs.org

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.

• Memorial Hospital

  dba Memorial Medical Associates

  • General Practice Physician
  • Owosso, MI
  • NPI 1235160532

  Pulmonary Disease

  Medicare reassignment NPD
• Michigan Lung and Critical Care Specialists, PC

  • Pulmonary Disease Physician
  • Grand Blanc, MI
  • NPI 1013948686
  Medicare reassignment
• Memorial Hospital

  dba Memorial Medical Associates

  • General Practice Physician
  • Owosso, MI
  • NPI 1316008006
  NPD
• Memorial Hospital

  dba Memorial Medical Associates

  • Anesthesiology Physician
  • Owosso, MI
  • NPI 1659527737
  NPD

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

{
    "created_epoch": "1147910400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1558314005",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9450 S SAGINAW RD",
            "address_2": "SUITE E",
            "city": "GRAND BLANC",
            "state": "MI",
            "postal_code": "484398206",
            "telephone_number": "810-695-4000",
            "fax_number": "810-695-4055"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9450 S SAGINAW RD",
            "address_2": "SUITE E",
            "city": "GRAND BLANC",
            "state": "MI",
            "postal_code": "484398206",
            "telephone_number": "810-695-4000",
            "fax_number": "810-695-4055"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STREFF",
        "first_name": "GREGORY",
        "middle_name": "J",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "MI",
            "license": "5101008684",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MCARE",
            "identifier": "C4234",
            "state": "MI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "HEALTHPLUS",
            "identifier": "0152500505",
            "state": "MI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "COMMUNITY CHOICE",
            "identifier": "103",
            "state": "MI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3361051",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Chelsy Strahan, COTAL
• Strauchman Morningstar Advanced Health Care, PLC.
• Strauchman-Morningstar Advanced Health Care, PLC
• Megan N Strauchman, D.O.
• Elizabeth Straus, DO
• Jason Streff, DO
• Jennifer Strickland
• Ryan Richard Sturm, D.O.
• Ewelina Suchocki, MD
• Michael J Sukiennik, MD

• Pulmonary Disease Physician in Grand Blanc, MI
• Providers in Grand Blanc, MI by specialty
• Pulmonary Disease Physician in Michigan

• 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.