Alex Penn

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

A122596 Issued in CA

Practice address

2125 Oak Grove Rd Ste 200
Walnut Creek, CA 94598-2520

Phone

(925) 296-7150

NPI assigned

Jul 22, 2011

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in CA, HI2 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

Interventional RadiologyAlso: Diagnostic Radiology

Education

University of California, San Francisco School of Medicine, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Solano Diagnostics Partners a Calif Limited PartnershipGroup PAC ID 4587556865, 43 clinicians

Northbay Physicians Surgery Center, LLCGroup PAC ID 0042122244, 336 clinicians

Bay Imaging Consultants Medical Group IncGroup PAC ID 9537069125, shared by 6 NPIs, 133 clinicians

County of Santa ClaraGroup PAC ID 1254244973, shared by 46 NPIs, 1,000 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northbay Medical Center Hospital, Fairfield, CA, CCN 050367
• El Camino Health Hospital, Mountain View, CA, CCN 050308
• Good Samaritan Hospital Hospital, San Jose, CA, CCN 050380
• Santa Clara Valley Medical Center Hospital, San Jose, CA, CCN 050038
• Sutter Delta Medical Center Hospital, Antioch, CA, CCN 050523

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

Merit-based Incentive Payment System (MIPS)

Final score

90.67 of 100Reported as group

Quality

84.1

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 41)

Interoperability endpoints

• Direct secure messaging: apenn11294@santaclaravalley.direct-ci.net

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.

• Northbay Healthcare Group

  • General Acute Care Hospital
  • Fairfield, CA
  • NPI 1821147786
  Medicare reassignment Care Compare group NPD
• Solano Diagnostics Partners a Calif Limited Partnership

  • Diagnostic Radiology Physician
  • Fairfield, CA
  • NPI 1811940661
  Medicare reassignment Care Compare group
• Bay Imaging Consultants Medical Group Inc

  • Diagnostic Radiology Physician
  • Walnut Creek, CA
  • NPI 1356597637
  Medicare reassignment NPD
• County of Santa Clara

  • Anesthesiology Physician
  • San Jose, CA
  • NPI 1588721500
  Medicare reassignment NPD
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1629301346
  Medicare reassignment NPD
• County of Santa Clara

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079
  Medicare reassignment NPD
• John Muir Magnetic Imaging Center

  • Diagnostic Radiology Physician
  • Walnut Creek, CA
  • NPI 1235184110

  HI

  Medicare reassignment NPD
• Magnetic Imaging Affiliates, LLC

  • Diagnostic Radiology Physician
  • Oakland, CA
  • NPI 1487040770

  HI

  Medicare reassignment NPD
• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Santa Clara, CA
  • NPI 1073606299

  Diagnostic Radiology

  Medicare reassignment NPD
• Bay Imaging Consultants Medical Group Inc

  • Diagnostic Radiology Physician
  • Honolulu, HI
  • NPI 1134681067
  Medicare reassignment NPD
• Queens North Hawaii Community Hospital

  • Orthopaedic Surgery Physician
  • Kamuela, HI
  • NPI 1528049814

  CA

  Medicare reassignment NPD
• Queens University Medical Group

  • Multi-Specialty Clinic/Center
  • Honolulu, HI
  • NPI 1891441382

  CA

  Medicare reassignment NPD

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

• County of Santa Clara

  • General Acute Care Hospital
  • San Jose, CA
  • NPI 1063406551
  Care Compare affiliation
• El Camino Hospital

  • General Acute Care Hospital
  • Mountain View, CA
  • NPI 1093712374
  Care Compare affiliation
• El Camino Hospital

  • General Acute Care Hospital
  • Los Gatos, CA
  • NPI 1417199340
  Care Compare affiliation
• El Camino Hospital

  • General Acute Care Hospital
  • Los Gatos, CA
  • NPI 1457594087
  Care Compare affiliation
• Good Samaritan Hospital, L.P.

  • General Acute Care Hospital
  • San Jose, CA
  • NPI 1437103777
  Care Compare affiliation
• Northbay Healthcare Group

  • General Acute Care Hospital
  • Fairfield, CA
  • NPI 1821147786
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Antioch, CA
  • NPI 1467808659
  Care Compare affiliation

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

{
    "created_epoch": "1311292800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750204800000",
    "number": "1972881159",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2125 OAK GROVE RD STE 200",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982520"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2125 OAK GROVE RD STE 200",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982520",
            "telephone_number": "925-296-7150"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PENN",
        "first_name": "ALEX",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-07-22",
        "last_updated": "2025-06-18",
        "certification_date": "2025-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "CA",
            "license": "A122596",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A122596",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rayna Pelley
• Jonelle Donica Pelobello, NP
• Brian Pena
• Lysandra Pena
• June S Peng, MD
• Valerie Pennebaker
• Penrad Imaging LLC
• Antonio Lydell Percy
• Sonia Perez-Quezada
• Abigail Esther Perez

• Diagnostic Radiology Physician in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Diagnostic Radiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 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.