Individual provider Active NPI

Alfred Merlin Blum, MD

  • Anesthesiology Physician
  • Castro Valley, CA
National Provider Identifier
1770533341
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
G62885 Issued in CA
Practice address
20103 Lake Chabot Rd
Castro Valley, CA 94546-5341
Phone
(510) 537-1234
Fax
(510) 727-2786
NPI assigned
May 12, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X G62885 CA Primary

Addresses

Primary practice location

20103 Lake Chabot Rd
Castro Valley, CA 94546-5341

Mailing address

PO Box 7793
San Francisco, CA 94120-7793
Phone (800) 697-6006

Other identifiers 1

IdentifierTypeStateIssuer
00G628850MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in FL
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
I20070226000532 FL Practitioner - Anesthesiology 4587766308 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Tulane University School of Medicine, 1986
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
US Anesthesia Partners of Florida IncGroup PAC ID 0345143152, 1,111 clinicians

Practice addresses (Care Compare)

800 Prudential Dr
Jacksonville, FL 32207-8202
Phone (904) 202-2000

Hospital & facility affiliations

  • Baptist Health Medical Center - Jacksonville Hospital, Jacksonville, FL, CCN 100088

Merit-based Incentive Payment System (MIPS)

Final score
94.8 of 100Reported as group
Quality
99.47
Improvement activities
40
Cost
83.62

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
G62885CAMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
US Anesthesia Partners of Florida Inc. Anesthesiology CurrentSince Aug 2, 2017 Accepting new patients
Christian L Koppel MD PA Anesthesiology Past Accepting new patients
Anesthesia Associates of Clay County Anesthesiology Past Accepting new patients

Locations

2776 Cleveland Ave
Fort Myers, FL 33901
Phone (239) 343-2000

800 Prudential Dr
Jacksonville, FL 32207
Phone (904) 202-2000

851 Trafalgar Ct
Ste 200E
Maitland, FL 32751
Phone (321) 422-7155

601 E Rollins St
Orlando, FL 32803
Phone (407) 303-1996

1000 Waterman Way
Tavares, FL 32778
Phone (352) 253-3333

Organizations & group practices 3

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": "1147392000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1770533341",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7793",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941207793",
            "telephone_number": "800-697-6006"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20103 LAKE CHABOT RD",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945465341",
            "telephone_number": "510-537-1234",
            "fax_number": "510-727-2786"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLUM",
        "first_name": "ALFRED",
        "middle_name": "MERLIN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-12",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "G62885",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G628850",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Castro Valley, CA

Sources for this page

Verify at the official NPI Registry.