Michael Leopold Grynsztejn

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

H1097 Issued in TX

Practice address

1500 Citywest Blvd
Ste. 300
Houston, TX 77042

Phone

(713) 620-4000

Fax

(713) 458-4229

NPI assigned

Jan 10, 2007

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 TX

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

Anesthesiology

Education

Other, 1981

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lonestar Anesthesia Solutions PLLCGroup PAC ID 8426567769, 46 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Oakbend Medical Center Hospital, Richmond, TX, CCN 450330

Merit-based Incentive Payment System (MIPS)

Final score

88.94 of 100Reported as group

Quality

91.31

Improvement activities

40

Cost

79.05

Merit-based Incentive Payment System (MIPS)

Final score

33.22 of 100Reported as group

Quality

21.89

Improvement activities

0

Cost

70.61

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/27020/brand/1/csg/1/fhir/r4

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.

• Lonestar Anesthesia Solutions PLLC

  • Anesthesiology Physician
  • Houston, TX
  • NPI 1992151161
  Medicare reassignment Care Compare group NPD
• Bayou Anesthesia and Pain P.a.

  • Anesthesiology Physician
  • Houston, TX
  • NPI 1114977139
  Medicare reassignment NPD
• Best Choice Anesthesia & Pain PLLC

  • Anesthesiology Physician
  • Spring, TX
  • NPI 1699015628
  Medicare reassignment NPD
• Northwest Anesthesiology & Pain Services, P.a.

  • Anesthesiology Physician
  • Houston, TX
  • NPI 1629027511
  Medicare reassignment NPD

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

• Oakbend Medical Center

  • General Acute Care Hospital
  • Richmond, TX
  • NPI 1700883196
  Care Compare affiliation

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

{
    "created_epoch": "1168387200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1594684800000",
    "number": "1679623151",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 840853",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752840853",
            "telephone_number": "972-233-1999",
            "fax_number": "972-233-3666"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 CITYWEST BLVD",
            "address_2": "STE. 300",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "77042",
            "telephone_number": "713-620-4000",
            "fax_number": "713-458-4229"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRYNSZTEJN",
        "first_name": "MICHAEL",
        "middle_name": "LEOPOLD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-10",
        "last_updated": "2020-07-14",
        "certification_date": "2020-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "TX",
            "license": "H1097",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "126663705",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD - MEDICARE",
            "identifier": "050041709",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LA - MEDICAID",
            "identifier": "1385379",
            "state": "LA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TX-BLUE SHIELD",
            "identifier": "84Y625",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Sara Grunert, DC
• Andra Kerley Gruver
• Damian Jerzy Grybowski, MD
• Sarah Michelle Grych, OTR
• Carolyn A Grygar, IBCLC
• Stephanie Jane Gryzmala, PHARMD
• GS Caregivers Home Care Services LLC
• GS Healthcare Services,LLC
• GS Home Health Management, LLC.
• Gsa EMS Group LLC

• Anesthesiology Physician in Houston, TX
• Providers in Houston, TX by specialty
• Anesthesiology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 2020; 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.