Ammara Tariq Gill, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

A154333 Issued in CA

Practice address

177 La Casa Via Ste 390
Walnut Creek, CA 94598-6101

Phone

(925) 692-5610

NPI assigned

Aug 16, 2009

Last updated

Apr 17, 2025By 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 2

Addresses

Other names 1

• Ammara Hassan Tahir Former name

Medicare fee-for-service enrollment

Enrolled in CA, NE2 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 2

Specialty

Hematology/OncologyAlso: Internal Medicine

Education

Other, 2002

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Providence Medical FoundationGroup PAC ID 8921993205, 1,461 clinicians

Regional West Physicians ClinicGroup PAC ID 2062301609, 136 clinicians

John Muir Physician NetworkGroup PAC ID 6608789813, 488 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Box Butte General Hospital Hospital, Alliance, NE, CCN 281360
• Providence Santa Rosa Memorial Hospital Hospital, Santa Rosa, CA, CCN 050174
• John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496
• Petaluma Valley Hospital Hospital, Petaluma, CA, CCN 050136
• Sonoma Valley Hospital Hospital, Sonoma, CA, CCN 050090

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: agill154765@ehr.johnmuirhealth.com
• Direct secure messaging: agill94248@alamedahs.direct-ci.com
• Direct secure messaging: ammara.gill@cernerdirect.coxhealth.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.

• John Muir Physician Network

  • General Practice Physician
  • Walnut Creek, CA
  • NPI 1841407665
  Medicare reassignment Care Compare group NPD
• Regional West Physicians Clinic

  • Family Medicine Physician
  • Scottsbluff, NE
  • NPI 1306910534

  CA, Internal Medicine

  Medicare reassignment Care Compare group NPD
• Providence Medical Foundation

  • Family Medicine Physician
  • Brea, CA
  • NPI 1871607762
  Medicare reassignment Care Compare group
• Regents of the Univ of Ca

  • Maternal & Fetal Medicine Physician
  • Sacramento, CA
  • NPI 1013906973
  Medicare reassignment NPD
• Regents of the University of California

  dba UC Davis Medical Group

  • Multi-Specialty Clinic/Center
  • Sacramento, CA
  • NPI 1952998973
  Medicare reassignment NPD
• Box Butte General Hospital

  • Critical Access Hospital
  • Alliance, NE
  • NPI 1811929060
  Medicare reassignment NPD
• Box Butte General Hospital

  dba Greater Nebraska Medical & Surgical Services - Alliance

  • Clinic/Center
  • Alliance, NE
  • NPI 1871652453
  Medicare reassignment NPD
• Providence Medical Foundation

  • Urology Physician
  • Apple Valley, CA
  • NPI 1053616706
  NPD
• Providence Medical Foundation

  • Family Medicine Physician
  • Anaheim, CA
  • NPI 1639715709
  NPD
• Regents of the Univ of Ca

  • Diagnostic Radiology Physician
  • Sacramento, CA
  • NPI 1477546406
  NPD
• Regents of the Univ of Ca

  • Physical Medicine & Rehabilitation Physician
  • Sacramento, CA
  • NPI 1679566764
  NPD
• Regents of the University of California

  dba Adventist Health and Rideout Cancer Center UCDMG

  • Multi-Specialty Clinic/Center
  • Marysville, CA
  • NPI 1578162632
  NPD

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

• John Muir Health

  dba John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  Care Compare affiliation
• Norcal Healthconnect LLC

  dba Petaluma Valley Hospital

  • General Acute Care Hospital
  • Petaluma, CA
  • NPI 1235162645
  Care Compare affiliation
• Sonoma Valley Health Care District

  dba Sonoma Valley Hospital

  • General Acute Care Hospital
  • Sonoma, CA
  • NPI 1710063870
  Care Compare affiliation
• St. Joseph Health Northern California, LLC

  dba Providence Santa Rosa Memorial Hospital

  • General Acute Care Hospital
  • Santa Rosa, CA
  • NPI 1134152549
  Care Compare affiliation
• Box Butte General Hospital

  • Critical Access Hospital
  • Alliance, NE
  • NPI 1811929060
  Care Compare affiliation

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

{
    "created_epoch": "1250380800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1447482096",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1450 TREAT BLVD # 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972168",
            "telephone_number": "925-952-2828"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "177 LA CASA VIA STE 390",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945986101",
            "telephone_number": "925-692-5610"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "619 5th St",
            "address_purpose": "LOCATION",
            "city": "Marysville",
            "state": "CA",
            "postal_code": "959015647",
            "country_code": "US",
            "telephone_number": "530-749-4400",
            "fax_number": "916-454-1287",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "400 Taylor Blvd Ste 202",
            "address_purpose": "LOCATION",
            "city": "Pleasant Hill",
            "state": "CA",
            "postal_code": "945232163",
            "country_code": "US",
            "telephone_number": "925-677-5041",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GILL",
        "first_name": "AMMARA",
        "middle_name": "TARIQ",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-08-16",
        "last_updated": "2025-04-17",
        "certification_date": "2025-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2012019220",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "A154333",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "AMMARA",
            "last_name": "TAHIR",
            "middle_name": "HASSAN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Daisy Gil
• Javier Alexander Gil I
• David D. Gilbert, MD
• Twannisha Marie Lashae Gilbert
• Caroline Elizabeth Gilchrist
• Kanwar R. S. Gill, M.D.
• Sundeep Gill, PHARM.D. PHD
• Tamana Kaur Gill
• Malaysia Gillam
• Robert James Gillespie

• Hematology & Oncology Physician in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Hematology & Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 2025; 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.