Individual provider Active NPI

Cynthia Ran Peng, M.D.

  • Emergency Medicine Physician
  • Stanford, CA
National Provider Identifier
1952789463
Registry record updated Apr 8, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A153848 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
May 16, 2015
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 8, 2022

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X MT208458 PA
Emergency Medicine Physician 207P00000X A153848 CA Primary

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 names 1

  • Cynthia Peng Other name

Electronic endpoints 2

TypeEndpointUseAffiliation
SOAP URL https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq Health Information Exchange (HIE) The Permanente Medical Group
SOAP URL https://careepiceast.kp.org:14430/Interconnect-prodmam/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, DC, MD, VA4 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 4

Enrollment IDStateProvider typePAC IDDetails
I20180823002044 CA Practitioner - Emergency Medicine 7214237528 Reassigns benefits to 4 organizations
I20220421002232 DC Practitioner - Emergency Medicine 7214237528 Reassigns benefits to 5 organizations
I20250724002269 MD Practitioner - Emergency Medicine 7214237528 Reassigns benefits to 3 organizations
I20250725001764 VA Practitioner - Emergency Medicine 7214237528 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
University of Maryland School of Medicine, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Kaiser Foundation Health Plan of the Mid Atlantic States, IncGroup PAC ID 3779495858, shared by 17 NPIs, 1,921 clinicians

Practice addresses (Care Compare)

1221 Mercantile LN
Largo, MD 20774-5374
Phone (301) 618-5700

13285 Minnieville Rd
Woodbridge, VA 22192-4018
Phone (703) 986-2400

14139 Potomac Mills Rd
Woodbridge, VA 22192-4644
Phone (703) 257-3000

8008 Westpark Dr
MC Lean, VA 22102-3109
Phone (703) 287-6400

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A153848CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc Current Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince Apr 25, 2022 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince Apr 25, 2022 Accepting new patients
Cep America - California Emergency Medicine CurrentSince Aug 10, 2020 Accepting new patients
County of Santa Clara CurrentSince Nov 25, 2020 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
County of Santa Clara Emergency Medicine Current Accepting new patients
County of Santa Clara CurrentSince Nov 25, 2020 Accepting new patients
Cep America - California Emergency Medicine Current Accepting new patients
County of Santa Clara Current Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Aug 10, 2020 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc Current Accepting new patients
County of Santa Clara CurrentSince Nov 25, 2020 Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc Current Accepting new patients
Kaiser Foundation Health Plan of the Mid Atlantic States, Inc CurrentSince May 19, 2025 Accepting new patients
County of Santa Clara CurrentSince Nov 25, 2020 Accepting new patients
Lucile Salter Packard Children'S Hospital at Stanford Past Accepting new patients
Stanford Hospital and Clinics Past Accepting new patients

Locations (25 of 28)

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

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

170 Alameda de las Pulgas
Redwood City, CA 94062
Phone (650) 367-5536

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

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

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

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

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

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

222 W 39th Ave
San Mateo, CA 94403
Phone (415) 573-2222

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

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

7070 Samuel Morse Dr
Columbia, MD 21046
Phone (410) 309-4600

7190 Crestwood Blvd
Frederick, MD 21703
Phone (240) 529-1700

1701 Twin Springs Rd
Halethorpe, MD 21227
Phone (410) 737-5000

4000 Garden City Dr
Fl 4
Hyattsville, MD 20785
Phone (227) 229-8532

10810 Connecticut Ave
Kensington, MD 20895
Phone (301) 929-7100

1221 Mercantile Ln
Fl 3
Largo, MD 20774
Phone (301) 618-5500

655 Watkins Mill Rd
Montgomery Village, MD 20879
Phone (301) 929-7100

2101 E Jefferson St
#4E
Rockville, MD 20852

2101 E Jefferson St
Ste 4EPFS
Rockville, MD 20852

2101 E Jefferson St
Ste 4EAST
Rockville, MD 20852

2391 Greenspring Dr
Timonium, MD 21093
Phone (410) 847-3000

6701 N Charles St
Towson, MD 21204
Phone (443) 849-2000

1221 Mercantile Ln
Upper Marlboro, MD 20774
Phone (301) 618-5500

Organizations & group practices 25

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.

View all 25

NPI Registry JSON

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

{
    "created_epoch": "1431734400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1649376000000",
    "number": "1952789463",
    "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": [],
    "basic": {
        "last_name": "PENG",
        "first_name": "CYNTHIA",
        "middle_name": "RAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-05-16",
        "last_updated": "2022-04-08",
        "certification_date": "2022-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "PA",
            "license": "MT208458",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A153848",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq",
            "affiliation": "Y",
            "endpointDescription": "Carequality",
            "affiliationName": "The Permanente Medical Group",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "1150 Veterans Blvd",
            "city": "Redwood City",
            "state": "CA",
            "country_code": "US",
            "postal_code": "940632037",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepiceast.kp.org:14430/Interconnect-prodmam/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "300 Pasteur Dr",
            "city": "Stanford",
            "state": "CA",
            "country_code": "US",
            "postal_code": "943052200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "CYNTHIA",
            "last_name": "PENG",
            "credential": "M.D.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.