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JAMES A CAROLAN M.D.
NPI 1316940620
Specialist in Vallejo, CA

Active since May 31, 2005PECOS EnrolledAccepts Medicare Assignment
975 SERENO DR, VALLEJO, CA 94589(707) 651-1042 Get Directions Write a Review

NPPES record last updated: December 13, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About James A Carolan M.d. NPPES

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

JAMES A CAROLAN M.D. (NPI 1316940620) is an individual specialist in Vallejo, California, licensed in California (A77481) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (2000).

NPPES Registry Identity

NPI1316940620
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameJAMES A CAROLANCredential: M.D.
Location Address975 SERENO DRVallejo, CA 94589-2441
Mailing Address975 Sereno DrVallejo, CA 94589-2441 · (707) 651-1042
Phone(707) 651-1042
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2000
Enumeration DateMay 31, 2005
Last NPPES UpdateDecember 13, 2021
✔ NPI 1316940620 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in CA · A77481
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
975 SERENO DR, Vallejo, CA 94589
Open in Google Maps ↗

Other Identifiers 1

MedicaidGR0015750CA

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

James A Carolan 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 ID6002891827
PECOS Enrollment IDI20040623001576
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 Reassignment

Medicare enrollment records show James Carolan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
0.1 mi
Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1336222397 (707) 651-1000

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.

DR. ROBERTA YIWUN WANG M.D.
Physical Medicine & Rehabilitation
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-5128
RIHONG ZHOU
Pharmacist
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-2072
EVAN HIRSCHBEIN
Student in an Organized Health Care Education/Training Program
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 339-2074
MS. JEAN BROADNAX LCSW
Social Worker (Clinical)
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-4423
SEAN NISAM
Student in an Organized Health Care Education/Training Program
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-4071
LI M. TSANG MD
Anesthesiology
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-1000
DONN R. ERICKSON MD
Family Medicine
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-1000
JOHN S. WOOD MD
Surgery
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-1000

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 James Carolan's NPI number?

The NPI number for James Carolan is 1316940620. It was assigned to this individual provider in the NPPES registry on May 31, 2005.

Where is James Carolan located?

James Carolan practices at 975 Sereno Dr, Vallejo, CA 94589. The listed phone number is (707) 651-1042.

What is James Carolan's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is James Carolan enrolled in Medicare?

Yes. James Carolan 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 organization bills Medicare for James Carolan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Carolan reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, CA). The 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 James Carolan'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 James Carolan was last updated on December 13, 2021. 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.