DR. KENNETH JAMES LOSSING DO
NPI 1891884243
Family Medicine in San Rafael, CA

Q: What is Kenneth Lossing's NPI number?

The NPI number for Kenneth Lossing is 1891884243. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Q: What is Kenneth Lossing's specialty?

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

Q: Is Kenneth Lossing enrolled in Medicare?

No. Kenneth Lossing has opted out of Medicare through September 22, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Kenneth Lossing was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 October 12, 2006Opted out of Medicare · through Sep 22, 2027

909 IRWIN ST, SAN RAFAEL, CA 94901(415) 454-8979 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Dr. Kenneth James Lossing Do NPPES

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

DR. KENNETH JAMES LOSSING DO (NPI 1891884243) is an individual family medicine provider in San Rafael, California, licensed in California (20A6902) and active in the NPI registry since October 2006. He has opted out of Medicare through September 22, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1891884243

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. KENNETH JAMES LOSSINGCredential: DO

Location Address909 IRWIN STSan Rafael, CA 94901

Mailing Address1625 Spring Hill RdPetaluma, CA 94952 · (707) 766-8902

Phone(415) 454-8979

Sole ProprietorNo

Enumeration DateOctober 12, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1891884243 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · 20A6902

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.

909 IRWIN ST, San Rafael, CA 94901

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Kenneth James Lossing Do has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from September 22, 2015 through September 22, 2027.

Opt-Out Effective DateSeptember 22, 2015

Opt-Out In Effect ThroughSeptember 22, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94901 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.

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 Kenneth Lossing's NPI number?

The NPI number for Kenneth Lossing is 1891884243. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is Kenneth Lossing located?

Kenneth Lossing practices at 909 Irwin St, San Rafael, CA 94901. The listed phone number is (415) 454-8979.

What is Kenneth Lossing's specialty?

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

Is Kenneth Lossing enrolled in Medicare?

No. Kenneth Lossing has opted out of Medicare through September 22, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Kenneth Lossing was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.