DR. GEOFFREY L KAMEN M.D.
NPI 1215015953
Family Medicine in San Luis Obispo, CA

Q: What is Geoffrey Kamen's NPI number?

The NPI number for Geoffrey Kamen is 1215015953. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Q: What is Geoffrey Kamen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Geoffrey Kamen was last updated on July 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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 November 01, 2006PECOS EnrolledAccepts Medicare Assignment

1150 GROVE ST # B, SAN LUIS OBISPO, CA 93401(805) 596-1565(833) 428-4062 Get Directions Write a Review

NPPES record last updated: July 6, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 6, 2025, Jan 23, 2019, Oct 12, 2018 and 1 more (4 updates tracked since 2018).

On this page

About Dr. Geoffrey L Kamen M.d. NPPES

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

DR. GEOFFREY L KAMEN M.D. (NPI 1215015953) is an individual family medicine provider in San Luis Obispo, California, licensed in California (A115526) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1215015953

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. GEOFFREY L KAMENCredential: M.D.

Location Address1150 GROVE ST # BSan Luis Obispo, CA 93401-2914

Mailing Address793 E Foothill Blvd # A117San Luis Obispo, CA 93405-1615 · (055) 961-5658 · Fax (833) 428-4062

Phone(805) 596-1565

Fax(833) 428-4062

Sole ProprietorNo

Medical School CMSOtherGraduated 2001

Enumeration DateNovember 1, 2006

Last NPPES UpdateJuly 6, 20254 updates tracked since enumeration

NPPES CertifiedJune 26, 2025

✔ NPI 1215015953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in CA · A115526✔ Licensed in NH · 13673

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Also ListedFamily Medicine · Adolescent MedicineTaxonomy 207QA0000X · License 240096 (NY)

1150 GROVE ST # B, San Luis Obispo, CA 93401

Open in Google Maps ↗

Other Identifiers 1

OtherA115526CA · Md License

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

Dr. Geoffrey L Kamen 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 ID7315949450

PECOS Enrollment IDI20130125000310

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 Geoffrey Kamen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Geoffey L Kamen MD A Professional Corporation

Same address

Family Medicine

1150 GROVE ST # B
San Luis Obispo, CA 93401

Reassigned Medicare billing, California enrollment

NPI 1073311460 (805) 596-1565

Signify Health Medical Associates Of California, PC

198 mi

General Practice

505 MONTGOMERY ST, FL 10 & 11
San Francisco, CA 94111

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

NPI 1124685169 (972) 715-3800

Signify Health, LLC

1,371 mi

General Practice

4055 VALLEY VIEW LN STE 700
Dallas, TX 75244

Reassigned Medicare billing, Idaho enrollment
74 clinicians in this Medicare group

NPI 1689158487 (469) 466-7007

Signify Health Medical Associates, PLLC

1,371 mi

General Practice

4055 VALLEY VIEW LN STE 700
Dallas, TX 75244

Reassigned Medicare billing, Pennsylvania, Texas and Washington enrollments
553 clinicians in this Medicare group

NPI 1750845863 (972) 715-3800

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 93401 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

$91.64 typical visit price

range $59.84 – $178.89

Typical copayment $22.91 (range $14.96 – $44.72)

Most-billed visit code 99203

Established Patient

$104.82 typical visit price

range $19.70 – $146.55

Typical copayment $26.20 (range $4.92 – $36.63)

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

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

GEOFFEY L KAMEN MD A PROFESSIONAL CORPORATION

Family Medicine

1150 GROVE ST # B
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 596-1565

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 Geoffrey Kamen's NPI number?

The NPI number for Geoffrey Kamen is 1215015953. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Geoffrey Kamen located?

Geoffrey Kamen practices at 1150 Grove St # B, San Luis Obispo, CA 93401. The listed phone number is (805) 596-1565.

What is Geoffrey Kamen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Geoffrey Kamen enrolled in Medicare?

Yes. Geoffrey Kamen 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 Geoffrey Kamen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Geoffrey Kamen reassigns Medicare benefits to 4 organizations: Geoffey L Kamen MD A Professional Corporation (San Luis Obispo, CA), Signify Health Medical Associates Of California, PC (San Francisco, CA), Signify Health, LLC (Dallas, TX) and Signify Health Medical Associates, PLLC (Dallas, TX). 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 Geoffrey Kamen'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 Geoffrey Kamen was last updated on July 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.