JUSTIN JUNHUAN TENG M.D.
NPI 1639556228
Anesthesiology in Oakland, CA

Q: What is Justin Teng's NPI number?

The NPI number for Justin Teng is 1639556228. It was assigned to this individual provider in the NPPES registry on May 3, 2015.

Q: What is Justin Teng's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Justin Teng was last updated on August 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 03, 2015PECOS EnrolledAccepts Medicare Assignment

1411 E 31ST ST, OAKLAND, CA 94602(916) 838-2391 Get Directions Write a Review

NPPES record last updated: August 2, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 2, 2022, Feb 11, 2022, Mar 23, 2016 (3 updates tracked since 2016).

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About Justin Junhuan Teng M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JUSTIN JUNHUAN TENG M.D. (NPI 1639556228) is an individual anesthesiology provider in Oakland, California, licensed in California (A147113) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS and is a graduate of University Of Michigan Medical School (2015).

NPPES Registry Identity

NPI1639556228

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameJUSTIN JUNHUAN TENGCredential: M.D.

Location Address1411 E 31ST STOakland, CA 94602-1018

Mailing Address1800 Harrison St, 7th FlOakland, CA 94612-3429 · (510) 625-2856 · Fax (877) 738-4262

Phone(916) 838-2391

Sole ProprietorYes

Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2015

Enumeration DateMay 3, 2015

Last NPPES UpdateAugust 2, 20223 updates tracked since enumeration

NPPES CertifiedAugust 2, 2022

✔ NPI 1639556228 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A147113

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1411 E 31ST ST, Oakland, CA 94602

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Justin Junhuan Teng M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9638429830

PECOS Enrollment IDI20190709001758

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Justin Teng reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California Sfgh Medical Group

10.0 mi

Family Medicine

1001 POTRERO AVE, BLDG 80 WARD 83 RM 320
San Francisco, CA 94110

Reassigned Medicare billing, California enrollment
842 clinicians in this Medicare group

NPI 1174598296 (628) 206-8610

Permanente Medical Group Inc

11 mi

Internal Medicine

2238 GEARY
San Francisco, CA 94116

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1841373800 (415) 833-2200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. YVONNE DIANE ESCARSEGA MSW

Social Worker (Clinical)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4373

MR. JUAN CASILLAS JR. NP

Nurse Practitioner (Family)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4800

SADHANA SAMANT MD

Obstetrics & Gynecology

1411 E 31ST ST, OAKCARE MEDICAL GROUP
OAKLAND, CA 94602

Alameda County (510) 437-4323

PATRICIA SCOTT MEYER PA

Clinical Nurse Specialist (Emergency)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (209) 342-2300

NATHALIE BALOGUN MSW MPH

Social Worker (Clinical)

1411 E 31ST ST, ALAMEDA COUNTY MEDICAL CENTER - MEDICAL SOCAL WORK SRVC
OAKLAND, CA 94602

Alameda County (510) 437-4949

CYNTHIA MARIE ROWDEN RN

Registered Nurse (Ambulatory Care)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4373

DR. KAYLA ENRIQUEZ MD

Emergency Medicine

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4564

DR. CHERYL LIN PARK M.D.

Surgery

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4743

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Justin Teng's NPI number?

The NPI number for Justin Teng is 1639556228. It was assigned to this individual provider in the NPPES registry on May 3, 2015.

Where is Justin Teng located?

Justin Teng practices at 1411 E 31st St, Oakland, CA 94602. The listed phone number is (916) 838-2391.

What is Justin Teng's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Justin Teng enrolled in Medicare?

Yes. Justin Teng is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Justin Teng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin Teng reassigns Medicare benefits to 2 organizations: University Of California Sfgh Medical Group (San Francisco, CA) and Permanente Medical Group Inc (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Justin Teng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Justin Teng was last updated on August 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.