Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

PERMANENTE MEDICAL GROUP INC
NPI 1336222397
Internal Medicine in Vallejo, CA

Q: What is Permanente Medical Group Inc's NPI number?

The NPI number for Permanente Medical Group Inc is 1336222397. It was assigned to this organization in the NPPES registry on October 23, 2006.

Q: What is Permanente Medical Group Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since October 23, 2006

975 SERENO DRIVE, VALLEJO, CA 94589(707) 651-1000 Get Directions Write a Review

NPPES record last updated: October 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 15, 2026, Oct 7, 2026, Nov 20, 2024 and 4 more (7 updates tracked since 2020).

On this page

About Permanente Medical Group Inc NPPES

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

PERMANENTE MEDICAL GROUP INC (NPI 1336222397) is a healthcare organization registered as an internal medicine in Vallejo, California and active in the NPI registry since October 2006. The organization maintains a secondary practice location in Fairfield and lists Timothy Richards, Cfo, as its authorized official.

NPPES Registry Identity

NPI1336222397

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NamePERMANENTE MEDICAL GROUP INC

Location Address975 SERENO DRIVEVallejo, CA 94589-2441

Mailing Address5820 Owens Dr Bldg E2ndPleasanton, CA 94588-3900

Phone(707) 651-1000

Organization SubpartYesParent: Permanente Medical Group, Inc.

Authorized OfficialTimothy RichardsCfo · (925) 737-5134

Enumeration DateOctober 23, 2006

Last NPPES UpdateOctober 15, 20267 updates tracked since enumeration

NPPES CertifiedOctober 15, 2026

✔ NPI 1336222397 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 15

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedAnesthesiologyTaxonomy 207L00000X

Also ListedDermatologyTaxonomy 207N00000X

Also ListedEmergency MedicineTaxonomy 207P00000X

Also ListedFamily MedicineTaxonomy 207Q00000X

Also ListedObstetrics & GynecologyTaxonomy 207V00000X

Also ListedOphthalmologyTaxonomy 207W00000X

Also ListedOtolaryngologyTaxonomy 207Y00000X

Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X

Also ListedPediatricsTaxonomy 208000000X

Also ListedPhysical Medicine & RehabilitationTaxonomy 208100000X

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X

Also ListedSurgeryTaxonomy 208600000X

Also ListedClinic/Center · Mental Health (Including Community Mental Health Center)Taxonomy 261QM0801X

975 SERENO DRIVE, Vallejo, CA 94589

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Secondary Practice Location 1

Location 1520 Chadbourne RdFairfield, CA 94534-9656 · Phone (707) 366-3600

Other Identifiers 8

MedicaidGR0046770CA

MedicaidGRN000111CA

MedicaidZZZ20736ZCA

MedicaidGR0015722CA

OtherZZZ31052ZBlue Shield

MedicaidLAB85875FCA

MedicaidZZZ20735ZCA

MedicaidZZZ20727ZCA

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Permanente Medical Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

19,985

Medicare enrollment records show 19,985 clinicians reassign Medicare billing to Permanente Medical Group Inc, which bills Medicare for the services they deliver. Of these, 183 practice at this address and 484 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 88

Internal Medicine2,969

Family Practice1,805

Emergency Medicine1,447

Pediatric Medicine1,374

Physical Therapist in Private Practice1,014

Obstetrics/Gynecology904

Clinical Psychologist856

Marriage and Family Therapist834

80 other specialties8,782

Nearest to this location (20)

See all 19,985

Noman Absar, MD

Critical Care (Intensivists)

NPI 1205908951

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ PECOS✔ Accepts MedicareSame address

Adebusola Adesina

Neurology

NPI 1386176139

975 SERENO DR RM H3351
Vallejo, CA 94589

(916) 734-2737

✔ PECOS✔ Accepts MedicareSame address

Carolyn Alekna, O.D.

Optometry

NPI 1285763631

975 SERENO DR
Vallejo, CA 94589

(707) 651-2585

✔ PECOS✔ Accepts MedicareSame address

Aaser Ali

Family Practice

NPI 1073148110

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ PECOS✔ Accepts MedicareSame address

Ryan Angeles, DPT

Physical Therapist in Private Practice

NPI 1811616485

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

Same address

Sana Arastu

Clinical Psychologist

NPI 1265057939

975 SERENO DR
Vallejo, CA 94589

(650) 771-4347

✔ PECOSSame address

Marian August, DO

Pediatric Medicine

NPI 1861849663

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ PECOSSame address

Ji Sun Baek, M.D.

Anesthesiology

NPI 1164816070

975 SERENO DR
Vallejo, CA 94589

(707) 651-2011

✔ PECOSSame address

Daniel Ballard, M.D.

Otolaryngology

NPI 1376930784

975 SERENO DR
Vallejo, CA 94589

(770) 262-8670

✔ PECOSSame address

Rebecca Bastian, M.D.

Internal Medicine

NPI 1578875324

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ PECOS✔ Accepts MedicareSame address

Daniel Bell, RN, CRNA, DNP

Certified Registered Nurse Anesthetist (CRNA)

NPI 1881137008

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ Accepts MedicareSame address

Mark Bernstein, MD

Orthopedic Surgery

NPI 1790859007

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ PECOSSame address

Kristen Bishop, MD

Psychiatry

NPI 1932661469

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ PECOS✔ Accepts MedicareSame address

Elliott Block, DO

Physical Medicine and Rehabilitation

NPI 1154810034

975 SERENO DR
Vallejo, CA 94589

(909) 724-4127

✔ PECOS✔ Accepts MedicareSame address

Jasmine Carino, AUD

Qualified Audiologist

NPI 1518525716

975 SERENO DR BAY VIEW NORTH
Vallejo, CA 94589

(707) 651-2500

Same address

Scott Casey, MD

Emergency Medicine

NPI 1609186873

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ PECOS✔ Accepts MedicareSame address

Ahchean Chen, MD

Pathology

NPI 1548202773

975 SERENO DR
Vallejo, CA 94589

(707) 651-2174

✔ PECOS✔ Accepts MedicareSame address

Peter Chuang, MD

Diagnostic Radiology

NPI 1861565905

975 SERENO DR
Vallejo, CA 94589

(707) 651-1825

✔ PECOS✔ Accepts MedicareSame address

Derek Colvin

Occupational Therapist in Private Practice

NPI 1649844747

975 SERENO DR
Vallejo, CA 94589

(707) 651-1000

✔ Accepts MedicareSame address

Lindsey Colvin

Qualified Speech Language Pathologist

NPI 1538562152

975 SERENO DR
Vallejo, CA 94589

(707) 651-1040

Same address

See all 19,985 clinicians

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

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 Permanente Medical Group Inc's NPI number?

The NPI number for Permanente Medical Group Inc is 1336222397. It was assigned to this organization in the NPPES registry on October 23, 2006.

Where is Permanente Medical Group Inc located?

Permanente Medical Group Inc is located at 975 Sereno Drive, Vallejo, CA 94589. The listed phone number is (707) 651-1000.

What is Permanente Medical Group Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Permanente Medical Group Inc enrolled in Medicare?

Yes. Permanente Medical Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Permanente Medical Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 19,985 clinicians in 88 Medicare specialties reassign their Medicare billing to Permanente Medical Group Inc. A 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 the clinician's services. The largest specialties are Internal Medicine (2,969), Family Practice (1,805) and Emergency Medicine (1,447). Of these, 183 practice at this address and 484 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Permanente Medical Group Inc was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.