Individual provider Active NPI

Pam Grewall, M.D.

  • Hospitalist Physician
  • San Francisco, CA
National Provider Identifier
1578580445
Registry record updated May 7, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
A78443 Issued in CA
Practice address
2340 Clay St
2ND Floor
San Francisco, CA 94115-1932
Phone
(415) 600-3458
Fax
(415) 600-3451
NPI assigned
Jul 16, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 7, 2019

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A78443 CA
Hospitalist Physician 208M00000X A78443 CA Primary

Addresses

Primary practice location

2340 Clay St
2ND Floor
San Francisco, CA 94115-1932

Mailing address

2350 W El Camino Real FL 2
Mountain View, CA 94040-6203
Phone (415) 600-3458

Other identifiers 1

IdentifierTypeStateIssuer
00A784430MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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

Enrollment IDStateProvider typePAC IDDetails
I20050425000888 CA Practitioner - Internal Medicine 9335188820 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
New York College of Osteo Medicine of New York Institute of Technology, 2000
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
County of Santa ClaraGroup PAC ID 1254244973, shared by 46 NPIs, 1,000 clinicians

Practice addresses (Care Compare)

751 S Bascom Ave
San Jose, CA 95128-2604
Phone (408) 885-5000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
61 of 100Reported as group
Quality
59.41
Promoting interoperability
0
Improvement activities
40
Cost
71.45

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
78443CAMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist
A78443CAMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Galen Inpatient Physicians PC Hospitalist CurrentSince Dec 9, 2025 Accepting new patients
Inpatient Specialists of California, PC Family Medicine CurrentSince Jan 1, 2022 Accepting new patients
County of Santa Clara CurrentSince Aug 15, 2024 Accepting new patients
County of Santa Clara CurrentSince Aug 15, 2024 Accepting new patients
Hospitalist Medicine Physicians of California, Inc Family Medicine CurrentSince Dec 1, 2020 Accepting new patients
County of Santa Clara Family Medicine Current Accepting new patients
Galen Inpatient Physicians PC Hospitalist CurrentSince Dec 9, 2025 Accepting new patients
County of Santa Clara CurrentSince Aug 15, 2024 Accepting new patients
County of Santa Clara CurrentSince Aug 17, 2024 Accepting new patients
County of Santa Clara Current Accepting new patients

Locations

18300 US Highway 18
Apple Valley, CA 92307
Phone (760) 424-2311

2000 Mowry Ave
Fremont, CA 94538
Phone (510) 793-6653

7475 Camino Arroyo
Gilroy, CA 95020
Phone (408) 852-2400

20103 Lake Chabot Rd
Hayward, CA 94546
Phone (510) 537-1234

250 Bon Air Rd
Kentfield, CA 94904
Phone (415) 464-1350

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

1441 Constitution Blvd
Salinas, CA 93906
Phone (831) 261-8090

2105 Forest Ave
San Jose, CA 95128
Phone (408) 947-2500

2101 Alexian Dr
San Jose, CA 95116
Phone (408) 272-6050

1996 Lundy Ave
San Jose, CA 95131
Phone (408) 299-5846

500 Tully Rd
San Jose, CA 95111
Phone (408) 817-1433

1993 McKee Rd
San Jose, CA 95116
Phone (408) 254-6320

750 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-2320

751 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-5110

13855 E 14th St
San Leandro, CA 94578
Phone (510) 357-6500

660 S Fair Oaks Ave
Sunnyvale, CA 94086
Phone (408) 885-7366

Interoperability endpoints

  • Direct secure messaging: pgrewall209115@santaclaravalley.direct-ci.net

Organizations & group practices 11

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1153008000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1557187200000",
    "number": "1578580445",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2350 W EL CAMINO REAL FL 2",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940406203",
            "telephone_number": "415-600-3458",
            "fax_number": "415-600-3451"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2340 CLAY ST",
            "address_2": "2ND FLOOR",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941151932",
            "telephone_number": "415-600-3458",
            "fax_number": "415-600-3451"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREWALL",
        "first_name": "PAM",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-16",
        "last_updated": "2019-05-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A78443",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A78443",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A784430",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.