Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Renata Ann Witkowska, MD

Allergy & Immunology Physician in Newburgh, NY · enumerated 2005 · practices at Hudson Valley Nephrologists P.C.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043203474

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Registry record

Entity type Individual (Type 1)

Name Ms. Renata Ann Witkowska

Credential MD

Sex Female

Practice address Newburgh, NY, 12550

Phone (845) 563-9990

Fax (845) 563-9992

Enumeration date Aug 31, 2005

Last updated in NPPES Jan 30, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 002081 (NY) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 002081 (NY) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
331832	Other	-	MEDICARE
00472931	Medicaid	NY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Renata Witkowska?

The National Provider Identifier (NPI) for Renata Witkowska is 1043203474, a Type 1 (individual) record in the CMS NPPES registry.

Where does Renata Witkowska practice?

The practice location on file with NPPES is in Newburgh, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Hudson Valley Nephrologists P.C Specialist · Newburgh, NY NPI 1790734101 Yong Wen Nephrology Physician · Newburgh, NY NPI 1578513883 Shoib Aziz Nephrology Physician · Newburgh, NY NPI 1912957465 Joann Reddings Family Nurse Practitioner · Newburgh, NY NPI 1962528471 Ibrahim Pasha Nephrology Physician · Newburgh, NY NPI 1629331798 Debra Penasso Registered Dietitian · Newburgh, NY NPI 1437495876

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-30.