MR. MARK NAPACK
NPI 1942435003
Counselor - Mental Health in Rockville, MD

Active since May 19, 2009Opted out of Medicare · through Aug 21, 2026
6810 MONTROSE RD, ROCKVILLE, MD 20852(301) 869-8428 Get Directions Write a Review

NPPES record last updated: March 2, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. Mark Napack NPPES

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

MR. MARK NAPACK (NPI 1942435003) is an individual mental health provider in Rockville, Maryland, licensed in Maryland (LC3076) and active in the NPI registry since May 2009. He has opted out of Medicare through August 21, 2026.

NPPES Registry Identity

NPI1942435003
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameMR. MARK NAPACK
Location Address6810 MONTROSE RDRockville, MD 20852-4210
Mailing AddressPo Box 631Kensington, MD 20895-0631
Sole ProprietorYes
Enumeration DateMay 19, 2009
Last NPPES UpdateMarch 2, 2010
NPI 1942435003 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License Licensed in MD · LC3076
6810 MONTROSE RD, Rockville, MD 20852

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Mr. Mark Napack has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 21, 2024 through August 21, 2026.

Opt-Out Effective DateAugust 21, 2024
Opt-Out In Effect ThroughAugust 21, 2026Opt-out affidavits renew automatically every two years unless cancelled

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 Mark Napack's NPI number?

The NPI number for Mark Napack is 1942435003. It was assigned to this individual provider in the NPPES registry on May 19, 2009.

Where is Mark Napack located?

Mark Napack practices at 6810 Montrose Rd, Rockville, MD 20852. The listed phone number is (301) 869-8428.

What is Mark Napack's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Mark Napack enrolled in Medicare?

No. Mark Napack has opted out of Medicare through August 21, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Mark Napack was last updated on March 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.