Gaia Mohr-Tonachini, MMSC

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA67404 Issued in CA

Practice address

323 Lennon LN
Walnut Creek, CA 94598-2497

Phone

(925) 430-5335

Fax

(925) 430-5446

NPI assigned

Apr 13, 2023

Sex

Female

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 CT, CA2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 2

Specialty

Physician Assistant

Education

Yale University School of Medicine, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Rehabilitation Associates IncGroup PAC ID 8022905322, shared by 2 NPIs, 525 clinicians

Brandon McCutcheon MD PCGroup PAC ID 5294198768, 5 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Yale-New Haven Hospital Hospital, New Haven, CT, CCN 070022
• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180
• Bridgeport Hospital Hospital, Bridgeport, CT, CCN 070010
• Lawrence & Memorial Hospital Hospital, New London, CT, CCN 070007
• John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496

Merit-based Incentive Payment System (MIPS)

Final score

87.36 of 100Reported as group

Quality

77.36

Promoting interoperability

100

Improvement activities

40

Cost

74.27

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gmohrtonachini485620@direct.ynhh.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.

• Brandon McCutcheon MD PC

  • Neurological Surgery Physician
  • Walnut Creek, CA
  • NPI 1649053851
  Medicare reassignment Care Compare group NPD
• Yale University

  dba Yale Medicine

  • Anesthesiology Physician
  • New Haven, CT
  • NPI 1205822236
  Medicare reassignment Care Compare group NPD
• Bass Medical Group

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
  • NPI 1174253405
  Medicare reassignment NPD
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• Yale University

  • Durable Medical Equipment & Medical Supplies
  • Fairfield, CT
  • NPI 1548066962
  NPD
• Yale University

  dba Yale Health Center

  • Health Service Clinic/Center
  • New Haven, CT
  • NPI 1093862740
  NPD (past)

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

• John Muir Health

  dba John Muir Health, Walnut Creek Medical Center

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation
• John Muir Health

  dba John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  Care Compare affiliation
• Bridgeport Hospital

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1649260845
  Care Compare affiliation
• Bridgeport Hospital

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1992910152
  Care Compare affiliation
• Lawrence and Memorial Hospital, Inc.

  dba Lawrence and Memorial Hospital

  • General Acute Care Hospital
  • New London, CT
  • NPI 1073530879
  Care Compare affiliation
• Lawrence and Memorial Hospital, Inc.

  dba Lawrence and Memorial Hospital

  • General Acute Care Hospital
  • New London, CT
  • NPI 1700092459
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1336139500
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1578778726
  Care Compare affiliation

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

{
    "created_epoch": "1681344000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772582400000",
    "number": "1407542442",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "323 LENNON LN",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982497",
            "telephone_number": "925-430-5335",
            "fax_number": "925-430-5446"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "323 LENNON LN",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982497",
            "telephone_number": "925-430-5335",
            "fax_number": "925-430-5446"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1601 Ygnacio Valley Rd",
            "address_purpose": "LOCATION",
            "city": "Walnut Creek",
            "state": "CA",
            "postal_code": "945983122",
            "country_code": "US",
            "telephone_number": "925-939-3000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MOHR-TONACHINI",
        "first_name": "GAIA",
        "credential": "MMSC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-04-13",
        "last_updated": "2026-03-04",
        "certification_date": "2026-03-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA67404",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hind Mohamed
• Moheb DMD Inc (San Miguel Dental Group)
• Alireza Moheb, DMD
• Arash Mohebati, MD
• Ann Susan Mohler, MD
• Vanitha Mohta, MD
• Hasina Mojadidi
• Maisie Sophia Mok, D.O.
• Robert Scott Molden, PA-C
• Kimberly Molina

• Physician Assistant in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 4, 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.