KONSTANTIN G. ZAHAROFF JR. MD
NPI 1932271780
Preventive Medicine - Occupational Medicine in Santa Rosa, CA

Q: What is Konstantin Zaharoff's NPI number?

The NPI number for Konstantin Zaharoff is 1932271780. It was assigned to this individual provider in the NPPES registry on November 15, 2006. The provider is also known as Kon Zaharoff Mph.

Q: What is Konstantin Zaharoff's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

Active since November 15, 2006PECOS Enrolled

401 BICENTENNIAL WAY, SANTA ROSA, CA 95403(707) 571-4000 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Konstantin G. Zaharoff Jr. Md NPPES

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

KONSTANTIN G. ZAHAROFF JR. MD (NPI 1932271780) is an individual occupational medicine provider in Santa Rosa, California, licensed in California (G57749) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932271780

Entity TypeIndividualMale

Primary Taxonomy2083X0100X

Provider Legal NameKONSTANTIN G. ZAHAROFF JR.Credential: MD

Location Address401 BICENTENNIAL WAYSanta Rosa, CA 95403-2149

Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3429 · (510) 625-6262

Phone(707) 571-4000

Sole ProprietorNo

Enumeration DateNovember 15, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1932271780 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreventive Medicine · Occupational MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083X0100X

License✔ Licensed in CA · G57749

Definition

Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

401 BICENTENNIAL WAY, Santa Rosa, CA 95403

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Other Names 1

Other Name (5)Kon Zaharoff Mph

Other Identifiers 3

Medicare ID-Type Unspecified00G577491

Medicaid00G577490CA

Medicare UPINF10899

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Konstantin G. Zaharoff Jr. 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 Konstantin Zaharoff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

35 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95403 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

$142.00 typical visit price

range $63.04 – $187.01

Typical copayment $35.50 (range $15.76 – $46.75)

Most-billed visit code 99204

Established Patient

$109.88 typical visit price

range $21.02 – $153.40

Typical copayment $27.47 (range $5.25 – $38.35)

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. JESSICA ANNE RUTLAND R.D.

Dietitian, Registered

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

Sonoma County (707) 393-4787

KURT FALKENBERG P.T.

Physical Therapist

401 BICENTENNIAL WAY, EAST BUILDING, SUITE 190
SANTA ROSA, CA 95403

Sonoma County (707) 571-3352

DELILAH PATTERSON CRNA

Nurse Anesthetist, Certified Registered

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

Sonoma County (707) 393-4616

KRISZTINA J. BALAZS MD

Pediatrics

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

Sonoma County (707) 571-4000

JOHN F. KUNKEL MD

Pathology (Anatomic Pathology)

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

Sonoma County (707) 571-4000

CRISTINA COREY SCHROEN LCSW

Social Worker (Clinical)

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

Sonoma County (707) 571-2536

JIE GIOK RAHARDJA PHARMD

Pharmacist

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

Sonoma County (707) 393-4652

CONOR WILLIAM BOWMAN PHARM.D.

Pharmacist

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

Sonoma County (818) 522-1238

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 Konstantin Zaharoff's NPI number?

The NPI number for Konstantin Zaharoff is 1932271780. It was assigned to this individual provider in the NPPES registry on November 15, 2006. The provider is also known as Kon Zaharoff Mph.

Where is Konstantin Zaharoff located?

Konstantin Zaharoff practices at 401 Bicentennial Way, Santa Rosa, CA 95403. The listed phone number is (707) 571-4000.

What is Konstantin Zaharoff's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

Is Konstantin Zaharoff enrolled in Medicare?

Yes. Konstantin Zaharoff is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Konstantin Zaharoff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Konstantin Zaharoff 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 Konstantin Zaharoff'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 Konstantin Zaharoff 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.