1. Home
  2. Directory
  3. California
  4. Santa Rosa
  5. Internal Medicine
  6. NPI Profile

FAN ZHANG MD
NPI 1619051695
Internal Medicine - Medical Oncology in Santa Rosa, CA

Active since October 25, 2006PECOS EnrolledAccepts Medicare Assignment
401 BICENTENNIAL WAY, SANTA ROSA, CA 95403(707) 571-4000 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 5, 2026, Dec 20, 2021 (2 updates tracked since 2021).

About Fan Zhang Md NPPES

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

FAN ZHANG MD (NPI 1619051695) is an individual medical oncology provider in Santa Rosa, California, licensed in California (81734) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Great Plains Health, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1619051695
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameFAN ZHANGCredential: MD
Location Address401 BICENTENNIAL WAYSanta Rosa, CA 95403-2149
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Phone(707) 571-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateOctober 25, 2006
Last NPPES UpdateMarch 5, 20262 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
✔ NPI 1619051695 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in CA · 81734
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License A81734 (CA)
401 BICENTENNIAL WAY, Santa Rosa, CA 95403
Open in Google Maps ↗

Other Identifiers 1

Medicaid00A817340CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Nebraska, Medica, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Fan Zhang Md 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 ID1951583954
PECOS Enrollment IDI20110312000021, I20240826002403, I20241231002929
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
28 services22 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Great Plains Health

Acute Care Hospitals · North Platte, NE
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number280065
Location601 West Leota StNorth Platte, NE 69101 · Lincoln County
Emergency services Birthing friendly

Cherry County Hospital

Critical Access Hospitals · Valentine, NE
OwnershipGovernment - Local
CMS Certification Number281344
Location510 North Green StValentine, NE 69201 · Cherry County
Emergency services

Ogallala Community Hospital

Critical Access Hospitals · Ogallala, NE
OwnershipGovernment - Hospital District or Authority
CMS Certification Number281355
Location2601 North Spruce StOgallala, NE 69153 · Keith County
Emergency services Birthing friendly

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
$187.01 typical visit price
range $63.04 – $187.01
Typical copayment $46.75 (range $15.76 – $46.75)
Most-billed visit code 99205
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 Fan Zhang's NPI number?

The NPI number for Fan Zhang is 1619051695. It was assigned to this individual provider in the NPPES registry on October 25, 2006.

Where is Fan Zhang located?

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

What is Fan Zhang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Fan Zhang enrolled in Medicare?

Yes. Fan Zhang 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.

What insurance does Fan Zhang accept?

Health plans from Blue Cross and Blue Shield of Nebraska, Medica and Oscar Insurance Company list Fan Zhang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Fan Zhang affiliated with any hospitals?

According to CMS data, Fan Zhang is affiliated with Great Plains Health, Cherry County Hospital and Ogallala Community Hospital.

When was this NPI record last updated?

The NPPES record for Fan Zhang was last updated on March 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.