JOANNA GRABOWSKI MD
NPI 1962081422
Internal Medicine in Brooklyn, NY

Q: What is Joanna Grabowski's NPI number?

The NPI number for Joanna Grabowski is 1962081422. It was assigned to this individual provider in the NPPES registry on April 2, 2021.

Q: What is Joanna Grabowski's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Joanna Grabowski was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.

Active since April 02, 2021PECOS EnrolledAccepts Medicare Assignment

374 STOCKHOLM ST, BROOKLYN, NY 11237(718) 963-7272 Get Directions Write a Review

NPPES record last updated: January 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 29, 2026, Aug 8, 2024, Apr 2, 2021 (3 updates tracked since 2021).

On this page

About Joanna Grabowski Md NPPES

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

JOANNA GRABOWSKI MD (NPI 1962081422) is an individual internal medicine provider in Brooklyn, New York, licensed in New York (331598-01) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Wyckoff Heights Medical Center, and maintains a secondary practice location in Hartford.

NPPES Registry Identity

NPI1962081422

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameJOANNA GRABOWSKICredential: MD

Location Address374 STOCKHOLM STBrooklyn, NY 11237-4006

Mailing Address374 Stockholm StBrooklyn, NY 11237-4006 · (718) 963-7272

Phone(718) 963-7272

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateApril 2, 2021

Last NPPES UpdateJanuary 29, 20263 updates tracked since enumeration

NPPES CertifiedJanuary 29, 2026

✔ NPI 1962081422 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in NY · 331598-01✔ Licensed in CT · 83573

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

374 STOCKHOLM ST, Brooklyn, NY 11237

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Secondary Practice Location 1

Location 180 Seymour StHartford, CT 06102-8000 · Phone (860) 972-0549 · Fax (860) 545-5221

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

Joanna Grabowski 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 ID244770121

PECOS Enrollment IDI20240905003933, I20260207000634

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 Reassignments

Medicare enrollment records show Joanna Grabowski reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wyckoff Professional Medical Services, PC

Same address

Internal Medicine

374 STOCKHOLM ST
Brooklyn, NY 11237

Reassigned Medicare billing, New York enrollment
427 clinicians in this Medicare group

NPI 1659710796 (718) 963-6485

Hartford Healthcare Medical Group Specialists, PLLC

97 mi

Surgery

85 SEYMOUR ST STE 415
Hartford, CT 06106

Reassigned Medicare billing, Connecticut enrollment
1,921 clinicians in this Medicare group

NPI 1023584216 (860) 246-2071

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 2

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.

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.

53 services51 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

42 services40 patients

Hospital Affiliations CMS Care Compare

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

Wyckoff Heights Medical Center

Acute Care Hospitals · Brooklyn, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330221

Location374 Stockholm StreetBrooklyn, NY 11237 · Kings County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11237 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

GABY DABOUL M.D

General Acute Care Hospital

374 STOCKHOLM ST
BROOKLYN, NY 11237

Kings County (718) 963-7272

AMIT DHALIWAL MD

Internal Medicine (Infectious Disease)

374 STOCKHOLM ST
BROOKLYN, NY 11237

Kings County (718) 963-7272

SAMER ATTIA MD

Internal Medicine

374 STOCKHOLM ST
BROOKLYN, NY 11237

Kings County (718) 963-6466

TECIA MADURIE RN

Registered Nurse

374 STOCKHOLM ST
BROOKLYN, NY 11237

Kings County (718) 501-1983

DR. FARIDEH ZONOUZI-ZADEH M.D.

Family Medicine

374 STOCKHOLM ST, C/O FACULTY PRACTICE
BROOKLYN, NY 11237

Kings County (718) 963-6551

DR. BALA KRISHNA BABJI RAVI M.D.

Obstetrics & Gynecology

374 STOCKHOLM ST, C/O FACULTY PRACTICE
BROOKLYN, NY 11237

Kings County (718) 963-6551

DIANE CHRIST P.A.

Physician Assistant

374 STOCKHOLM ST, C/O FACULTY PRACTICE MANAGEMENT SUITE I-37 NORTH
BROOKLYN, NY 11237

Kings County (718) 963-6551

MRS. BHAKTI SHAH RPA-C

Physician Assistant

374 STOCKHOLM ST, C/O FACULTY PRACTICE MANAGEMENT-SUITE I37N
BROOKLYN, NY 11237

Kings County (914) 654-6543

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 Joanna Grabowski's NPI number?

The NPI number for Joanna Grabowski is 1962081422. It was assigned to this individual provider in the NPPES registry on April 2, 2021.

Where is Joanna Grabowski located?

Joanna Grabowski practices at 374 Stockholm St, Brooklyn, NY 11237. The listed phone number is (718) 963-7272.

What is Joanna Grabowski's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Joanna Grabowski enrolled in Medicare?

Yes. Joanna Grabowski 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.

Which organizations bill Medicare for Joanna Grabowski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Grabowski reassigns Medicare benefits to 2 organizations: Wyckoff Professional Medical Services, PC (Brooklyn, NY) and Hartford Healthcare Medical Group Specialists, PLLC (Hartford, CT). Each 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 Joanna Grabowski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Joanna Grabowski affiliated with any hospitals?

According to CMS data, Joanna Grabowski is affiliated with Wyckoff Heights Medical Center.

When was this NPI record last updated?

The NPPES record for Joanna Grabowski was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.