Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NONDA SEREATHA MESTER MD
NPI 1295365575
Obstetrics & Gynecology in Santa Barbara, CA

Active since January 25, 2020PECOS Enrolled
400 W PUEBLO ST, SANTA BARBARA, CA 93105(805) 879-8160(805) 225-6231 Get Directions Write a Review

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

Record update history: Oct 6, 2026, Jan 26, 2023, Jan 25, 2020 (3 updates tracked since 2020).

About Nonda Sereatha Mester Md NPPES

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

NONDA SEREATHA MESTER MD (NPI 1295365575) is an individual obstetrics & gynecology provider in Santa Barbara, California, licensed in California (A190332) and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Barbara, and is a graduate of Oregon Health Sciences University School Of Medicine (2022).

NPPES Registry Identity

NPI1295365575
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameNONDA SEREATHA MESTERCredential: MD
Location Address400 W PUEBLO STSanta Barbara, CA 93105-4353
Mailing AddressPo Box 689Santa Barbara, CA 93102-0689 · (805) 879-8160 · Fax (805) 225-6231
Fax(805) 225-6231
Sole ProprietorYes
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2022
Enumeration DateJanuary 25, 2020
Last NPPES UpdateOctober 6, 20263 updates tracked since enumeration
NPPES CertifiedOctober 6, 2026
✔ NPI 1295365575 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 · A190332
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.
400 W PUEBLO ST, Santa Barbara, CA 93105

Other Names 1

Former Name (1)Nonda Sereatha Hanneman

Secondary Practice Location 1

Location 12416 Castillo St Ste ASanta Barbara, CA 93105-5303 · Phone (805) 324-9400 · Fax (805) 749-2922

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nonda Sereatha Mester Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9739628181
PECOS Enrollment IDI20260803001763
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 Nonda Mester reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinic/Center
400 W PUEBLO ST
Santa Barbara, CA 93105
  • Reassigned Medicare billing, California enrollment
  • 157 clinicians in this Medicare group

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 93105 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
$139.99 typical visit price
range $62.01 – $184.40
Typical copayment $34.99 (range $15.50 – $46.10)
Most-billed visit code 99204
Established Patient
$76.76 typical visit price
range $20.60 – $151.20
Typical copayment $19.19 (range $5.15 – $37.80)
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 20

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

Pediatrics (Pediatric Infectious Diseases)
400 W PUEBLO ST
SANTA BARBARA, CA 93105
Student in an Organized Health Care Education/Training Program
400 W PUEBLO ST
SANTA BARBARA, CA 93105
Radiology (Diagnostic Radiology)
400 W PUEBLO ST
SANTA BARBARA, CA 93105
Internal Medicine
400 W PUEBLO ST
SANTA BARBARA, CA 93105
Emergency Medicine
400 W PUEBLO ST
SANTA BARBARA, CA 93105
Student in an Organized Health Care Education/Training Program
400 W PUEBLO ST
SANTA BARBARA, CA 93105
Student in an Organized Health Care Education/Training Program
400 W PUEBLO ST
SANTA BARBARA, CA 93105
Pathology (Anatomic Pathology & Clinical Pathology)
400 W PUEBLO ST
SANTA BARBARA, CA 93105

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 Nonda Mester's NPI number?

The NPI number for Nonda Mester is 1295365575. It was assigned to this individual provider in the NPPES registry on January 25, 2020. The provider is also known as Nonda Sereatha Hanneman.

Where is Nonda Mester located?

Nonda Mester practices at 400 W Pueblo St, Santa Barbara, CA 93105. The listed phone number is (805) 879-8160.

What is Nonda Mester's specialty?

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

Is Nonda Mester enrolled in Medicare?

Yes. Nonda Mester is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nonda Mester's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nonda Mester reassigns Medicare benefits to Cottage Medical Foundation (Santa Barbara, 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 Nonda Mester'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 Nonda Mester was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.