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ANNA T KOSTRZEWSKY MD
NPI 1629536511
Psychiatry & Neurology - Psychiatry in Baltimore, MD

Active since March 09, 2019PECOS Enrolled
6501 N CHARLES ST, BALTIMORE, MD 21204(410) 938-3000 Get Directions Write a Review

NPPES record last updated: November 8, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 8, 2023, Jan 28, 2022, Mar 9, 2019 (3 updates tracked since 2019).

About Anna T Kostrzewsky Md NPPES

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

ANNA T KOSTRZEWSKY MD (NPI 1629536511) is an individual psychiatry provider in Baltimore, Maryland, licensed in Maryland (D0098828) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Owensboro.

NPPES Registry Identity

NPI1629536511
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameANNA T KOSTRZEWSKYCredential: MD
Location Address6501 N CHARLES STBaltimore, MD 21204-6819
Mailing Address6501 N Charles StBaltimore, MD 21204-6819 · (410) 938-3000
Phone(410) 938-3000
Sole ProprietorNo
Enumeration DateMarch 9, 2019
Last NPPES UpdateNovember 8, 20233 updates tracked since enumeration
NPPES CertifiedNovember 8, 2023
✔ NPI 1629536511 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in MD · D0098828✔ Licensed in KY · 56123
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
6501 N CHARLES ST, Baltimore, MD 21204
Open in Google Maps ↗

Secondary Practice Location 1

Location 11201 Pleasant Valley RdOwensboro, KY 42303-9811 · Phone (270) 417-3772 · Fax (270) 417-3709

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Anna T Kostrzewsky 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 Anna Kostrzewsky reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sheppard Pratt Physicians, P.A.
Same address
Psychiatry
6501 N CHARLES ST
Baltimore, MD 21204
  • Reassigned Medicare billing, Maryland enrollment
  • Medicare enrollment name: Sheppard Pratt Physicians PA
  • 187 clinicians in this Medicare group
NPI 1518990712 (410) 938-3150

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
253 services35 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
38 services12 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
18 services17 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
15 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21204 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
$183.44 typical visit price
range $60.73 – $183.44
Typical copayment $45.86 (range $15.18 – $45.86)
Most-billed visit code 99205
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
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.

MISS VICTORIA DIANE WANK CCC-SLP
Speech-Language Pathologist
6501 N CHARLES ST
TOWSON, MD 21204
Baltimore County (410) 938-4411
KAMIYLAH LAWSON
Nurse Practitioner (Psychiatric/Mental Health)
6501 N CHARLES ST
TOWSON, MD 21204
Baltimore County (410) 938-3000
MRS. ASHLEY ANN LESTER PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000
DR. RICHARD JOSPH LOEWENSTEIN M.D.
Psychiatry & Neurology (Psychiatry)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-5075
MICHAEL J PRIESTER PHD
Psychologist (Clinical)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000
DR. SARA ANN MIX
Psychologist (Clinical)
6501 N CHARLES ST
TOWSON, MD 21204
Baltimore County (443) 881-2028
CAROLINE J COHEN LCSW-C
Social Worker (Clinical)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000
DOUGLAS M GARTRELL MD
Psychiatry & Neurology (Psychiatry)
6501 N CHARLES ST
BALTIMORE, MD 21204
Baltimore County (410) 938-3000

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 Anna Kostrzewsky's NPI number?

The NPI number for Anna Kostrzewsky is 1629536511. It was assigned to this individual provider in the NPPES registry on March 9, 2019.

Where is Anna Kostrzewsky located?

Anna Kostrzewsky practices at 6501 N Charles St, Baltimore, MD 21204. The listed phone number is (410) 938-3000.

What is Anna Kostrzewsky's specialty?

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

Is Anna Kostrzewsky enrolled in Medicare?

Yes. Anna Kostrzewsky is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Anna Kostrzewsky's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anna Kostrzewsky reassigns Medicare benefits to Sheppard Pratt Physicians, P.A. (Baltimore, MD). 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 Anna Kostrzewsky'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 Anna Kostrzewsky was last updated on November 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.