DR. JAN ZAKRZEWSKI M.D.
NPI 1063855328
Internal Medicine - Infectious Disease in Upper Marlboro, MD

Q: What is Jan Zakrzewski's NPI number?

The NPI number for Jan Zakrzewski is 1063855328. It was assigned to this individual provider in the NPPES registry on April 16, 2013.

Q: What is Jan Zakrzewski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Jan Zakrzewski was last updated on May 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since April 16, 2013PECOS EnrolledAccepts Medicare Assignment

1221 MERCANTILE LN, UPPER MARLBORO, MD 20774(301) 618-5647(301) 618-5504 Get Directions Write a Review

NPPES record last updated: May 28, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 28, 2021, Jun 29, 2018 (2 updates tracked since 2018).

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About Dr. Jan Zakrzewski M.d. NPPES

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

DR. JAN ZAKRZEWSKI M.D. (NPI 1063855328) is an individual infectious disease provider in Upper Marlboro, Maryland, licensed in Maryland (D85540) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and maintains a secondary practice location in Washington.

NPPES Registry Identity

NPI1063855328

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameDR. JAN ZAKRZEWSKICredential: M.D.

Location Address1221 MERCANTILE LNUpper Marlboro, MD 20774

Mailing Address1221 Mercantile Ln Dept OfUpper Marlboro, MD 20774-5374 · (301) 618-5647 · Fax (301) 618-5504

Phone(301) 618-5647

Fax(301) 618-5504

Sole ProprietorYes

Medical School CMSState University Of New York At Buffalo School Of MedicineGraduated 2013

Enumeration DateApril 16, 2013

Last NPPES UpdateMay 28, 20212 updates tracked since enumeration

NPPES CertifiedMay 28, 2021

✔ NPI 1063855328 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in MD · D85540

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

1221 MERCANTILE LN, Upper Marlboro, MD 20774

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Secondary Practice Location 1

Location 13800 Reservoir Rd NW, Dept of MedicineWashington, DC 20007-2113 · Phone (202) 444-8168 · Fax (877) 303-1460

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jan Zakrzewski M.d. 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 ID5991069411

PECOS Enrollment IDI20180717001694

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.

Hospital Affiliations CMS Care Compare

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

Holy Cross Hospital

Acute Care Hospitals · Silver Spring, MD

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number210004

Location1500 Forest Glen RoadSilver Spring, MD 20910 · Montgomery County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20774 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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.

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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.

DR. EARL JOHN D MAURICIO M.D.

Psychiatry & Neurology (Psychiatry)

1221 MERCANTILE LN
LARGO, MD 20774

Prince George's County (301) 386-6800

DR. ENYINNAYA ROSE NWANERI M.D.,M.P.H.

Anesthesiology

1221 MERCANTILE LN
UPPER MARLBORO, MD 20774

Prince George's County (301) 395-2074

DR. LYNN ANETTA THOMAS MD

Internal Medicine

1221 MERCANTILE LN, KAISER PERMANENTE LARGO MEDICAL CENTER
LARGO, MD 20774

Prince George's County (301) 618-5500

DR. VIRGIL LEE GRAHAM MD

Obstetrics & Gynecology (Maternal & Fetal Medicine)

1221 MERCANTILE LN, DEPT OF OBGYN
LARGO, MD 20774

Prince George's County (301) 618-5578

SASHA ROCHELLE JARRETT MD

Anesthesiology

1221 MERCANTILE LN
UPPER MARLBORO, MD 20774

Prince George's County (301) 456-4368

FELICIA C ELVIS PA

Physician Assistant

1221 MERCANTILE LN, KAISER PERMANENTE LARGO MEDICAL CENTER
LARGO, MD 20774

Prince George's County (301) 618-5500

MOHAMED A ATALLA M.D.

Urology

1221 MERCANTILE LN, KAISER PERMANENTE DEPARTMENT OF UROLOGY
LARGO, MD 20774

Prince George's County (301) 618-5500

TINA MUSA

Obstetrics & Gynecology

1221 MERCANTILE LN
UPPER MARLBORO, MD 20774

Prince George's County (301) 618-5500

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 Jan Zakrzewski's NPI number?

The NPI number for Jan Zakrzewski is 1063855328. It was assigned to this individual provider in the NPPES registry on April 16, 2013.

Where is Jan Zakrzewski located?

Jan Zakrzewski practices at 1221 Mercantile Ln, Upper Marlboro, MD 20774. The listed phone number is (301) 618-5647.

What is Jan Zakrzewski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Jan Zakrzewski enrolled in Medicare?

Yes. Jan Zakrzewski 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.

Is Jan Zakrzewski affiliated with any hospitals?

According to CMS data, Jan Zakrzewski is affiliated with Holy Cross Hospital.

When was this NPI record last updated?

The NPPES record for Jan Zakrzewski was last updated on May 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.