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DR. AGNIESZKA ANNA WISNIEWSKA M.D.
NPI 1659501708
Psychiatry & Neurology - Psychiatry in Union City, CA

Active since July 23, 2009PECOS Enrolled
3553 WHIPPLE RD, UNION CITY, CA 94587(510) 454-1000 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Agnieszka Anna Wisniewska M.d. NPPES

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

DR. AGNIESZKA ANNA WISNIEWSKA M.D. (NPI 1659501708) is an individual psychiatry provider in Union City, California, licensed in New York (255922) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659501708
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. AGNIESZKA ANNA WISNIEWSKACredential: M.D.
Location Address3553 WHIPPLE RDUnion City, CA 94587-1507
Mailing Address3553 Whipple RdUnion City, CA 94587-1507 · (510) 454-1000
Phone(510) 454-1000
Sole ProprietorYes
Enumeration DateJuly 23, 2009
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1659501708 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in NY · 255922
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
3553 WHIPPLE RD, Union City, CA 94587
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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 (PECOS)

Dr. Agnieszka Anna Wisniewska M.d. 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 Agnieszka Wisniewska reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
11 mi
Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1639252604 (650) 299-2000

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 94587 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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.

JAYASUDHA S PALAVALLI M.D.
Internal Medicine
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
CATHERINE MICHELE KNOX M.D.
Ophthalmology
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
PATRICIA PUI YEE LEE M.D.
Obstetrics & Gynecology
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
TANIA CHOPRA
Pharmacist
3553 WHIPPLE RD, 3RD FLOOR, MED STATION #4
UNION CITY, CA 94587
Alameda County (510) 675-2215
TRIXY SYU D.O.
Physical Medicine & Rehabilitation (Neuromuscular Medicine)
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 675-4807
ANJANA VINAYAK HARNOOR MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 675-4013
MS. NATALYA NICOLOFF N.P.
Nurse Practitioner (Adult Health)
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
NEDDA SHAKIB MISHERGHI O.D.
Optometrist
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000

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 Agnieszka Wisniewska's NPI number?

The NPI number for Agnieszka Wisniewska is 1659501708. It was assigned to this individual provider in the NPPES registry on July 23, 2009.

Where is Agnieszka Wisniewska located?

Agnieszka Wisniewska practices at 3553 Whipple Rd, Union City, CA 94587. The listed phone number is (510) 454-1000.

What is Agnieszka Wisniewska's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Agnieszka Wisniewska enrolled in Medicare?

Yes. Agnieszka Wisniewska is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Agnieszka Wisniewska's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Agnieszka Wisniewska reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, 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 Agnieszka Wisniewska'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 Agnieszka Wisniewska was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.