NPIMap

Individual provider Active NPI

Yumeng Wen, MD

  • Nephrology Physician
  • Stanford, CA
National Provider Identifier
1124470372
Registry record updated Jan 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
A203232 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Jul 11, 2016
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 6, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X D90786 MD
Nephrology Physician 207RN0300X A203232 CA Primary
Internal Medicine Physician 207R00000X A203232 CA
Internal Medicine Physician 207R00000X D90786 MD

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Other practice location 1

1830 E Monument St Fl 4
Baltimore, MD 21287-0020
Phone (410) 955-5268

Other practice location 2

515 W 59th St Apt 17R
New York, NY 10019-1293
Phone (347) 244-4213

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, CA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230525000219 MD Practitioner - NephrologyPractitioner - Internal Medicine 6901144112 Reassigns benefits to 1 organization
I20251029002662 CA Practitioner - NephrologyPractitioner - Internal Medicine 6901144112 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Hospital & facility affiliations

  • Stanford Health Care Hospital, Stanford, CA, CCN 050441

Merit-based Incentive Payment System (MIPS)

Final score
83.31 of 100Reported as group
Quality
73.89
Promoting interoperability
100
Improvement activities
40
Cost
70.47

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A203232CAMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care Internal Medicine Current Accepting new patients
Johns Hopkins University CurrentSince May 1, 2023 Accepting new patients
Johns Hopkins University Current Accepting new patients
Stanford Health Care CurrentSince Oct 15, 2025 Accepting new patients
Johns Hopkins University Nephrology CurrentSince May 1, 2023 Accepting new patients
Stanford Health Care CurrentSince Oct 15, 2025 Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Oct 15, 2025 Accepting new patients

Locations

725 Welch Rd
Palo Alto, CA 94304
Phone (650) 497-8979

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

5601 Loch Raven Blvd
Baltimore, MD 21239
Phone (443) 444-4714

6201 Greenleigh Ave
Middle River, MD 21220
Phone (410) 933-2704

Interoperability endpoints

  • Direct secure messaging: ywen535513@direct.hopkinsmedicine.org

Organizations & group practices 7

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 7

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": "1468195200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767657600000",
    "number": "1124470372",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1830 E Monument St Fl 4",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212870020",
            "country_code": "US",
            "telephone_number": "410-955-5268",
            "fax_number": "410-367-2258",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "515 W 59th St Apt 17R",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100191293",
            "country_code": "US",
            "telephone_number": "347-244-4213",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WEN",
        "first_name": "YUMENG",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-07-11",
        "last_updated": "2026-01-06",
        "certification_date": "2026-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MD",
            "license": "D90786",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "CA",
            "license": "A203232",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A203232",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MD",
            "license": "D90786",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.