DR. MARK GEORGE JANCZEWSKI (MD, MPH) – Clinical Informatics Physician, NPI 1124022843

DR. MARK GEORGE JANCZEWSKI (MD, MPH) is a healthcare provider. based in Annandale, Virginia. specializing in Clinical Informatics Physician. They hold the professional credentials MD, MPH. They hold a License No. 0101041106 (VA). The NPI Number for DR. MARK GEORGE JANCZEWSKI (MD, MPH) is 1124022843

Main info

Male
Sole Proprietor
Name
DR. MARK GEORGE JANCZEWSKI (MD, MPH)
NPI
1124022843
Phone
(703) 698-5811
Address
3438 HOLLY RD
Enumeration Date
9 June 2005
Last Update Date
3 September 2025
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience74
Completeness85
Years active:21State licenses:1Digital endpointsOther names

Loading map...

Provider Addresses for DR. MARK GEORGE JANCZEWSKI (MD, MPH)

  • 3438, Holly Road, Annandale, Fairfax, Virginia, 22003, United States

    ANNANDALE, VA 220031266

    Phone: (703) 698-5811

    Type: Mailing

  • 410 Government Ave Ste 1

    Valparaiso, FL 325801061

    Phone: (703) 994-7637

    Type: Location

  • 425 S PAYNE ST

    ALEXANDRIA, VA 223145944

    Phone: (703) 994-7637

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 22003)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

Does DR. MARK GEORGE JANCZEWSKI (MD, MPH) share an NPI with anyone else?
NPI numbers are unique to each provider or organization — DR. MARK GEORGE JANCZEWSKI (MD, MPH) uses 1124022843.
Is DR. MARK GEORGE JANCZEWSKI (MD, MPH) still practicing?
DR. MARK GEORGE JANCZEWSKI (MD, MPH) is currently listed as active in the public NPI registry.
What is DR. MARK GEORGE JANCZEWSKI (MD, MPH) best known for clinically?
Directory data describes DR. MARK GEORGE JANCZEWSKI (MD, MPH) with Clinical Informatics Physician. Clinical services aligned with this taxonomy classification.
What address line appears for DR. MARK GEORGE JANCZEWSKI (MD, MPH)?
DR. MARK GEORGE JANCZEWSKI (MD, MPH)'s geographic hint is Annandale, Virginia in our summary view.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

Similar Providers

DR. DAVID PHILLIP PARKER (M.D.)

Clinical Informatics Physician
5900 BALCONES DR # 11505
NPI: 1255334983

DR. THOMAS JAMES CANTILINA (MD)

Family Medicine Physician
307 BOATNER RD STE 114
NPI: 1134111453

JEFFREY W HONEYCUTT (M.D.)

Vascular & Interventional Radiology Physician
PO BOX 995
NPI: 1114916251
3350 LA JOLLA VILLAGE DR MAIL CODE 11H-CIT
NPI: 1275502163

DR. ALBERT HENRY JR. BONNEMA (M.D.)

Clinical Informatics Physician
2171 HUNTERS RIDGE BLVD
NPI: 1255399051

DR. DARSHAN SUBBARAO NAIDU THOTA (M.D.)

Emergency Medicine Physician
3551 ROGER BROOKE DR
NPI: 1447410220

DR. QUINTON ALAN LUCAS (M.D.)

Family Medicine Physician
20945, Great Mills Road, Great Mills, Lexington Park, Saint Mary's County, Maryland, 20653, United States
NPI: 1013163849

DAVID ALT (M.D.)

Pediatrics Physician
184 BARTON ST
NPI: 1962772541