KATHRYN MARIE OSEI-BONSU
NPI 1174159164
Obstetrics & Gynecology in Santa Rosa, CA

Q: What is Kathryn Osei-bonsu's NPI number?

The NPI number for Kathryn Osei-bonsu is 1174159164. It was assigned to this individual provider in the NPPES registry on March 21, 2020.

Q: What is Kathryn Osei-bonsu's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Active since March 21, 2020PECOS EnrolledAccepts Medicare Assignment

34 MARK WEST SPRINGS RD, SANTA ROSA, CA 95403(707) 541-7900(707) 573-5413 Get Directions Write a Review

NPPES record last updated: December 4, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 4, 2024, Mar 21, 2020 (2 updates tracked since 2020).

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About Kathryn Marie Osei-bonsu NPPES

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

KATHRYN MARIE OSEI-BONSU (NPI 1174159164) is an individual obstetrics & gynecology provider in Santa Rosa, California, licensed in California (A189973) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and is a graduate of Virginia Commonwealth University, School Of Medicine (2020).

NPPES Registry Identity

NPI1174159164

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameKATHRYN MARIE OSEI-BONSU

Location Address34 MARK WEST SPRINGS RDSanta Rosa, CA 95403-1766

Mailing AddressPo Box 276950Sacramento, CA 95827-6950 · (707) 541-7900 · Fax (707) 573-5413

Phone(707) 541-7900

Fax(707) 573-5413

Sole ProprietorNo

Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 2020

Enumeration DateMarch 21, 2020

Last NPPES UpdateDecember 4, 20242 updates tracked since enumeration

NPPES CertifiedDecember 4, 2024

✔ NPI 1174159164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in CA · A189973

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

34 MARK WEST SPRINGS RD, Santa Rosa, CA 95403

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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

Kathryn Marie Osei-bonsu 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 ID1254714231

PECOS Enrollment IDI20250211000363

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 Kathryn Osei-bonsu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation

53 mi

Multi-Specialty

12 CAMINO ENCINAS
Orinda, CA 94563

Reassigned Medicare billing, California enrollment
4,479 clinicians in this Medicare group

NPI 1366898538 (510) 204-8180

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

$77.94 typical visit price

range $21.02 – $153.40

Typical copayment $19.48 (range $5.25 – $38.35)

Most-billed visit code 99213

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 17

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

GUY TALMOR MD

Otolaryngology