1. Home
  2. Directory
  3. Maryland
  4. Prince Frederick
  5. Counselor
  6. NPI Profile

HILLARY M CULLEN
NPI 1841647252
Counselor in Prince Frederick, MD

Active since May 17, 2016PECOS EnrolledAccepts Medicare Assignment
65 DUKE ST, STE 202, PRINCE FREDERICK, MD 20678(301) 659-0817(877) 334-9731 Get Directions Write a Review

NPPES record last updated: May 17, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Hillary M Cullen NPPES

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

HILLARY M CULLEN (NPI 1841647252) is an individual counselor in Prince Frederick, Maryland, licensed in Maryland (LGPC) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1841647252
Entity TypeIndividualFemale
Primary Taxonomy101Y00000X
Provider Legal NameHILLARY M CULLEN
Location Address65 DUKE ST, STE 202Prince Frederick, MD 20678-6128
Mailing Address3600 29th StChesapeake Beach, MD 20732-9250 · (301) 659-0817 · Fax (877) 334-9731
Phone(301) 659-0817
Fax(877) 334-9731
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateMay 17, 2016
✔ NPI 1841647252 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers
Taxonomy Code101Y00000X
License✔ Licensed in MD · LGPC
Definition
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
65 DUKE ST, Prince Frederick, MD 20678
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Hillary M Cullen 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 ID6103395256
PECOS Enrollment IDI20260518003305
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.

Medicare Billing Reassignment

Medicare enrollment records show Hillary Cullen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Andrew T Gergely, MD & Associates, LLC
13 mi
Mental Health (Including Community Mental Health Center)
3175 W WARD RD, #200
Dunkirk, MD 20754
  • Reassigned Medicare billing, Maryland enrollment
  • 17 clinicians in this Medicare group
NPI 1033134341 (410) 286-0664

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STEIA MILLS
Social Worker (Clinical)
65 DUKE ST
PRINCE FREDERICK, MD 20678
Calvert County (443) 295-8955
UTOPIA HEALTH CENTER
Clinic/Center (Rehabilitation, Substance Use Disorder)
65 DUKE ST
PRINCE FREDERICK, MD 20678
Calvert County (301) 220-2842
LISA MARI HUNT LCSW-C
Social Worker (Clinical)
65 DUKE ST
PRINCE FREDERICK, MD 20678
Calvert County (443) 295-8955
MS. C YVONNE MICHELI LCSWC MSW
Social Worker (Clinical)
65 DUKE ST, KAINE BLDG SUITE 111
PRINCE FREDERICK, MD 20678
Calvert County (410) 257-5750

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 Hillary Cullen's NPI number?

The NPI number for Hillary Cullen is 1841647252. It was assigned to this individual provider in the NPPES registry on May 17, 2016.

Where is Hillary Cullen located?

Hillary Cullen practices at 65 Duke St Ste 202, Prince Frederick, MD 20678. The listed phone number is (301) 659-0817.

What is Hillary Cullen's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

Is Hillary Cullen enrolled in Medicare?

Yes. Hillary Cullen 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.

Which organization bills Medicare for Hillary Cullen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hillary Cullen reassigns Medicare benefits to Andrew T Gergely, MD & Associates, LLC (Dunkirk, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Hillary Cullen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Hillary Cullen was last updated on May 17, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.