Individual provider Active NPI

Monica Seungah Choo, MD

  • Obstetrics Physician
  • Pleasanton, CA
National Provider Identifier
1326673401
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics PhysicianTaxonomy code 207VX0000X
License
A183563 Issued in CA
Practice address
4725 1St St Ste 100
Pleasanton, CA 94566-7366
Phone
(925) 734-3333
NPI assigned
Mar 9, 2020
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics Physician 207VX0000X A183563 CA Primary

Addresses

Primary practice location

4725 1St St Ste 100
Pleasanton, CA 94566-7366

Mailing address

4725 1St St Ste 100
Pleasanton, CA 94566-7366
Phone (925) 734-3333

Other practice location 1

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone (734) 936-4000

Other practice location 2

700 Lawrence Expy
Santa Clara, CA 95051-5173
Phone (408) 313-2956

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
I20251010001316 CA Practitioner - Obstetrics/Gynecology 3274912340 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
University of Michigan Medical School, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University Healthcare AllianceGroup PAC ID 6305748799, 334 clinicians

Practice addresses (Care Compare)

4725 1St St
Suite 100
Pleasanton, CA 94566-7366
Phone (925) 462-7060

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A183563CAMDObstetrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University Healthcare Alliance CurrentSince Sep 15, 2025 Accepting new patients
Affinity Medical Group Past Accepting new patients

Locations

50 E Hamilton Ave
Ste 280
Campbell, CA 95008
Phone (408) 227-2646

1300 Crane St
Menlo Park, CA 94025
Phone (510) 785-5000

4725 1st St
Ste 100
Pleasanton, CA 94566
Phone (925) 462-7060

Interoperability endpoints

  • Direct secure messaging: mchoo529137@direct.stanfordhealthcare.org

Organizations & group practices 2

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": "1583712000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1326673401",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4725 1ST ST STE 100",
            "city": "PLEASANTON",
            "state": "CA",
            "postal_code": "945667366",
            "telephone_number": "925-734-3333"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4725 1ST ST STE 100",
            "city": "PLEASANTON",
            "state": "CA",
            "postal_code": "945667366",
            "telephone_number": "925-734-3333"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1500 E Medical Center Dr",
            "address_purpose": "LOCATION",
            "city": "Ann Arbor",
            "state": "MI",
            "postal_code": "481095000",
            "country_code": "US",
            "telephone_number": "734-936-4000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "700 Lawrence Expy",
            "address_purpose": "LOCATION",
            "city": "Santa Clara",
            "state": "CA",
            "postal_code": "950515173",
            "country_code": "US",
            "telephone_number": "408-313-2956",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHOO",
        "first_name": "MONICA",
        "middle_name": "SEUNGAH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-09",
        "last_updated": "2025-09-11",
        "certification_date": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VX0000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Obstetrics",
            "state": "CA",
            "license": "A183563",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Pleasanton, CA

Sources for this page

Verify at the official NPI Registry.