NPIMap

Individual provider Active NPI

Connie Tang Singh, MD

  • Sleep Medicine (Internal Medicine) Physician
  • Pleasanton, CA
National Provider Identifier
1427212653
Registry record updated Mar 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X
License
A104374 Issued in CA
Practice address
5565 W Las Positas Blvd Ste 320B
Pleasanton, CA 94588-4001
Phone
(925) 416-3500
NPI assigned
Jul 16, 2008
Last updated
Mar 16, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 16, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A104374 CA
Sleep Medicine (Internal Medicine) Physician 207RS0012X A104374 CA Primary

Addresses

Primary practice location

5565 W Las Positas Blvd Ste 320B
Pleasanton, CA 94588-4001

Mailing address

5565 W Las Positas Blvd Ste 320B
Pleasanton, CA 94588-4001
Phone (925) 416-3500

Other practice location 1

1801 E March Ln Ste C310
Stockton, CA 95210-6683
Phone (209) 465-5731

Other practice location 2

4950 Sunset Blvd. 6 th floor
Los Angeles, CA 90027
Phone (323) 783-3810

Other names 1

  • Connie K. Tang Former name

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20090928000457 CA Practitioner - Internal Medicine 1355497660 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of Southern California Keck School of Medicine, 2006
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)

1801 E March LN
Suite C310
Stockton, CA 95210-6683
Phone (209) 465-5731

5565 W Las Positas Blvd
Suite 320a
Pleasanton, CA 94588-5808
Phone (650) 723-4000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
88.07 of 100Reported as group
Quality
78.83
Promoting interoperability
97
Improvement activities
40
Cost
75.53

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A104374CAMDSleep Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Pacific Sleep Disorders Center a California General Partnership Sleep Medicine CurrentSince Aug 25, 2018 Accepting new patients
Hospitalist Medicine Physicians of California, Inc Internal Medicine CurrentSince Nov 21, 2015 Accepting new patients
Stanford Health Care Internal Medicine CurrentSince Jan 15, 2026 Accepting new patients
Stanford Health Care CurrentSince Jan 15, 2026 Accepting new patients
University Healthcare Alliance Internal Medicine CurrentSince Jan 15, 2026 Accepting new patients
Inpatient Specialists of California, PC Internal Medicine CurrentSince Nov 21, 2015 Accepting new patients
Sutter Regional Medical Foundation Internal Medicine Past Accepting new patients

Locations

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

1930 Tienda Dr
Ste 202
Lodi, CA 95242
Phone (209) 365-1110

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

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

5565 W Las Positas Blvd
Ste 300
Pleasanton, CA 94588
Phone (925) 734-0712

5565 W Las Positas Blvd
Ste 320A
Pleasanton, CA 94588

5565 W Las Positas Blvd
Ste 320B
Pleasanton, CA 94588
Phone (650) 725-7061

1000 Greenley Rd
Sonora, CA 95370
Phone (209) 263-0803

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

1800 N California St
Stockton, CA 95204
Phone (209) 467-6400

1801 E March Ln
Ste C310
Stockton, CA 95210
Phone (209) 465-5731

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: csingh735379@hisp.ehr.sutterhealth.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 8

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": "1216166400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773619200000",
    "number": "1427212653",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5565 W LAS POSITAS BLVD STE 320B",
            "city": "PLEASANTON",
            "state": "CA",
            "postal_code": "945884001",
            "telephone_number": "925-416-3500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5565 W LAS POSITAS BLVD STE 320B",
            "city": "PLEASANTON",
            "state": "CA",
            "postal_code": "945884001",
            "telephone_number": "925-416-3500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1801 E March Ln Ste C310",
            "address_purpose": "LOCATION",
            "city": "Stockton",
            "state": "CA",
            "postal_code": "952106683",
            "country_code": "US",
            "telephone_number": "209-465-5731",
            "fax_number": "209-465-0230",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4950 Sunset Blvd. 6 th floor",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "90027",
            "country_code": "US",
            "telephone_number": "323-783-3810",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SINGH",
        "first_name": "CONNIE",
        "middle_name": "TANG",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2008-07-16",
        "last_updated": "2026-03-16",
        "certification_date": "2026-03-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A104374",
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "CA",
            "license": "A104374",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "CONNIE",
            "last_name": "TANG",
            "middle_name": "K.",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Pleasanton, CA

Sources for this page

Verify at the official NPI Registry.