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JONATHAN DELSON MD
NPI 1891774113
Family Medicine - Adult Medicine in Novato, CA

Active since January 13, 2006PECOS Enrolled
97 SAN MARIN DR, NOVATO, CA 94945(415) 899-7412 Get Directions Write a Review

NPPES record last updated: December 20, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Jonathan Delson Md NPPES

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

JONATHAN DELSON MD (NPI 1891774113) is an individual adult medicine provider in Novato, California, licensed in California (G88021) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891774113
Entity TypeIndividualMale
Primary Taxonomy207QA0505X
Provider Legal NameJONATHAN DELSONCredential: MD
Location Address97 SAN MARIN DRNovato, CA 94945-1100
Mailing Address97 San Marin DrNovato, CA 94945-1100 · (415) 899-7412
Phone(415) 899-7412
Sole ProprietorNo
Enumeration DateJanuary 13, 2006
Last NPPES UpdateDecember 20, 2021
✔ NPI 1891774113 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Adult MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QA0505X
License✔ Licensed in CA · G88021
Definition
The National Uniform Claim Committee (NUCC) recommends code 207QA0505X not be used. Choose a more appropriate code.
97 SAN MARIN DR, Novato, CA 94945
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Other Identifiers 1

Medicaid315681AZ

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jonathan Delson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Jonathan Delson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
18 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94945 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.67 typical visit price
range $69.07 – $202.63
Typical copayment $26.16 (range $17.26 – $50.65)
Most-billed visit code 99203
Established Patient
$119.61 typical visit price
range $23.44 – $166.64
Typical copayment $29.90 (range $5.86 – $41.66)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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. ZIBA ANSARI-JABERI PHARM.D.
Pharmacist
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 893-4040
RITU MUKERJI-METZGER MD
Internal Medicine
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 899-7400
JEAN VIERRA MD
Obstetrics & Gynecology
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 899-7400
HELEN MAN-SON-HING MD
Internal Medicine
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 899-7400
DONALD A. PIERCE MD
Internal Medicine (Rheumatology)
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 899-7400
DR. NAM DUY NGUYEN PHARM.D.
Pharmacist
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 899-7563
DR. MICHAEL I HARRIS M.D.
Pediatrics
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 899-7414
BARBARA DORAN NP
Nurse Practitioner
97 SAN MARIN DR
NOVATO, CA 94945
Marin County (415) 899-7411

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 Jonathan Delson's NPI number?

The NPI number for Jonathan Delson is 1891774113. It was assigned to this individual provider in the NPPES registry on January 13, 2006.

Where is Jonathan Delson located?

Jonathan Delson practices at 97 San Marin Dr, Novato, CA 94945. The listed phone number is (415) 899-7412.

What is Jonathan Delson's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Adult Medicine, with taxonomy code 207QA0505X.

Is Jonathan Delson enrolled in Medicare?

Yes. Jonathan Delson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jonathan Delson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Delson reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Jonathan Delson'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 Jonathan Delson was last updated on December 20, 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.