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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARY HOLECHEK C.R.N.P.
NPI 1750334876
Nurse Practitioner in Baltimore, MD

Active since May 18, 2006PECOS Enrolled
600 N WOLFE ST, BALTIMORE, MD 21287(410) 955-4851 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mary Holechek C.r.n.p. NPPES

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

MARY HOLECHEK C.R.N.P. (NPI 1750334876) is an individual nurse practitioner in Baltimore, Maryland, licensed in Maryland (R070100) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1750334876
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMARY HOLECHEKCredential: C.R.N.P.
Location Address600 N WOLFE STBaltimore, MD 21287-0005
Mailing AddressPo Box 64563Baltimore, MD 21264-4563
Phone(410) 955-4851
Sole ProprietorNo
Enumeration DateMay 18, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1750334876 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MD · R070100
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
600 N WOLFE ST, Baltimore, MD 21287
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Holechek C.r.n.p. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

PAMELA KIMZEY DONOHUE SCD, PA-C
Physician Assistant (Medical)
600 N WOLFE ST, NELSON 2-133
BALTIMORE, MD 21287
Baltimore City (410) 955-5232
MR. CHRISTOPHER DAVID SCHRIEBER M.S., PA-C
Physician Assistant
600 N WOLFE ST, MARBURG B-186
BALTIMORE, MD 21287
Baltimore City (410) 955-8708
DR. SABRINA CHRISTINE SOPHA M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-3580
SANDRA KING D.H.
Dental Hygienist
600 N WOLFE ST, BLALOCK 266
BALTIMORE, MD 21287
Baltimore City (410) 955-6662
THERESA J RUDDY C.P.N.P., CRNP
Nurse Practitioner (Acute Care)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5260
DR. SUMAN PAUL M.B.B.S, PHD
Internal Medicine (Medical Oncology)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
MS. SARAH CATHERINE COLLICA
Psychiatry & Neurology (Psychiatry)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (443) 287-4701
JEFF S EHRESMAN
Student in an Organized Health Care Education/Training Program
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000

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 Mary Holechek's NPI number?

The NPI number for Mary Holechek is 1750334876. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Mary Holechek located?

Mary Holechek practices at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-4851.

What is Mary Holechek's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Mary Holechek enrolled in Medicare?

Yes. Mary Holechek is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary Holechek was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.