Larissa Grebenchtchikova, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

43833 Issued in AZ

Practice address

250 E Dunlap Ave
Phoenix, AZ 85020-2825

Phone

(602) 943-2381

NPI assigned

Jul 22, 2008

Last updated

Sep 10, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 6

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NY, AZ, CA, OK, PA, MT, HI, CO8 enrollments

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 8

Specialty

Anesthesiology

Education

Other, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northeastern Anesthesia PLLCGroup PAC ID 4284813940, 83 clinicians

Grand Canyon Anesthesia LLCGroup PAC ID 3678824752, 50 clinicians

Battle Born Anesthesia Associates LTDGroup PAC ID 5193235141, 26 clinicians

Kingman Healthcare IncGroup PAC ID 6901791367, 185 clinicians

Poudre Valley Medical Group LLCGroup PAC ID 9638208549, 2,425 clinicians

University Anesthesia Medical GroupGroup PAC ID 2769370535, 402 clinicians

Hospitalist Medicine Physicians of Arizona - NogalesGroup PAC ID 9335554625, 11 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Kingman Regional Medical Center Hospital, Kingman, AZ, CCN 030055
• Tucson Medical Center Hospital, Tucson, AZ, CCN 030006
• Havasu Regional Medical Center Hospital, Lake Havasu City, AZ, CCN 030069
• UCSF Medical Center Hospital, San Francisco, CA, CCN 050454
• City of Hope Cancer Center Phoenix Hospital, Goodyear, AZ, CCN 030138

Merit-based Incentive Payment System (MIPS)

Final score

98.98 of 100Reported as group

Quality

95

Improvement activities

40

Cost

80.65

Merit-based Incentive Payment System (MIPS)

Final score

63.03 of 100Reported as group

Quality

44.74

Improvement activities

40

Merit-based Incentive Payment System (MIPS)

Final score

0 of 100Reported as group

Quality

0

Improvement activities

0

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 47)

Interoperability endpoints

• Direct secure messaging: lgrebenchtchikova143912@cityofhope.direct-ci.com
• Direct secure messaging: lgrebenchtchikova195119@santaclaravalley.direct-ci.net
• Direct secure messaging: lgrebenchtchikova230989@direct.urmc.rochester.edu
• Direct secure messaging: lgrebenchtchikova349151@direct-ucsfmedicalcenter.org

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.

• Battle Born Anesthesia Associates LTD

  • Anesthesiology Physician
  • Kingman, AZ
  • NPI 1629781455
  Medicare reassignment Care Compare group NPD
• Grand Canyon Anesthesia LLC

  • Anesthesiology Physician
  • Scottsdale, AZ
  • NPI 1356822902
  Medicare reassignment Care Compare group NPD
• Hospitalist Medicine Physicians of Arizona - Nogales

  • Certified Registered Nurse Anesthetist
  • Tucson, AZ
  • NPI 1487251799

  Anesthesiology

  Medicare reassignment Care Compare group NPD
• Kingman Healthcare, Inc

  dba Kingman Regional Medical Center

  • General Acute Care Hospital
  • Kingman, AZ
  • NPI 1265423917
  Medicare reassignment Care Compare group NPD
• Northeastern Anesthesia PLLC

  • Anesthesiology Physician
  • Sierra Vista, AZ
  • NPI 1487956504
  Medicare reassignment Care Compare group NPD
• University Anesthesia Medical Group

  • Anesthesiology Physician
  • San Francisco, CA
  • NPI 1528137296
  Medicare reassignment Care Compare group NPD
• Poudre Valley Medical Group, LLC

  dba UCHealth Medical Group

  • General Practice Physician
  • Loveland, CO
  • NPI 1225356868
  Medicare reassignment Care Compare group
• Ias Arizona PLLC

  • Anesthesiology Physician
  • Tucson, AZ
  • NPI 1689359747
  Medicare reassignment NPD
• Sierra Vista Regional Health Center Medical Group LLC

  • Family Medicine Physician
  • Sierra Vista, AZ
  • NPI 1043575483
  Medicare reassignment NPD
• Anesthesia Partners of Arizona LLC

  • Anesthesiology Physician
  • Richardson, TX
  • NPI 1619452901

  AZ

  Medicare reassignment NPD
• Billings Clinic

  • Emergency Care Clinic/Center
  • Billings, MT
  • NPI 1326104845
  Medicare reassignment NPD
• Cep America - Anesthesia, PC

  • Anesthesiology Physician
  • Walnut Creek, CA
  • NPI 1790401438
  Medicare reassignment NPD

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

• Havasu Regional Medical Center LLC

  dba Havasu Regional Medical Center

  • Rural Acute Care Hospital
  • Lake Havasu City, AZ
  • NPI 1780761866
  Care Compare affiliation
• Kingman Healthcare, Inc

  dba Kingman Regional Medical Center

  • General Acute Care Hospital
  • Kingman, AZ
  • NPI 1265423917
  Care Compare affiliation
• Tucson Medical Center

  • General Acute Care Hospital
  • Tucson, AZ
  • NPI 1174512792
  Care Compare affiliation
• Western Regional Medical Center Inc

  dba Western Regional Medical Center Retail Pharmacy

  • Community/Retail Pharmacy
  • Goodyear, AZ
  • NPI 1710138037

  Hospital

  Care Compare affiliation
• Western Regional Medical Center, Inc.

  dba City of Hope Cancer Center Arizona

  • General Acute Care Hospital
  • Goodyear, AZ
  • NPI 1508029422
  Care Compare affiliation
• University of California, San Francisco

  dba UCSF Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1689772592
  Care Compare affiliation

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

{
    "created_epoch": "1216684800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788998400000",
    "number": "1093970766",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 E DUNLAP AVE",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850202825",
            "telephone_number": "602-943-2381"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 E DUNLAP AVE",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850202825",
            "telephone_number": "602-943-2381"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1400 E Boulder St",
            "address_purpose": "LOCATION",
            "city": "Colorado Springs",
            "state": "CO",
            "postal_code": "809095533",
            "country_code": "US",
            "telephone_number": "719-365-5000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "400 W 16th St",
            "address_purpose": "LOCATION",
            "city": "Pueblo",
            "state": "CO",
            "postal_code": "810032745",
            "country_code": "US",
            "telephone_number": "719-584-4045",
            "fax_number": "719-542-0809",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "10400 75th St",
            "address_purpose": "LOCATION",
            "city": "Kenosha",
            "state": "WI",
            "postal_code": "531427884",
            "country_code": "US",
            "telephone_number": "262-948-5600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2105 Forest Ave",
            "address_purpose": "LOCATION",
            "city": "San Jose",
            "state": "CA",
            "postal_code": "951281471",
            "country_code": "US",
            "telephone_number": "408-259-5000 x2616",
            "fax_number": "408-995-0117",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GREBENCHTCHIKOVA",
        "first_name": "LARISSA",
        "name_prefix": "Ms.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-07-22",
        "last_updated": "2026-09-10",
        "certification_date": "2026-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208VP0000X",
            "taxonomy_group": "",
            "desc": "Pain Medicine, Pain Medicine",
            "state": "NY",
            "license": "003161",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CO",
            "license": "DR.0076648",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "C169056",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "003161",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "100498",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "AZ",
            "license": "43833",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100230616",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Greater PHX ASC LLC
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• Rachel Lea Grecco, OTR/L
• Alison Greco, OTR/L
• Jessica R Greco
• Marina A Greco, M.A., LPC
• Greedy Gaming LLC

• Anesthesiology Physician in Phoenix, AZ
• Providers in Phoenix, AZ by specialty
• Anesthesiology Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 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.