NPPES file of Aug 9, 2026

Nicole Courtney Twaalfhoven, LCPC

Mental Health Counselor · Riverdale, MD

Nicole Courtney Twaalfhoven, LCPC is a mental health counselor with a practice address in Riverdale, Maryland, and NPI 1003325515, issued on Sep 27, 2017. Check the license (Maryland LPC8520, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003325515
Name
Nicole Courtney Twaalfhoven
Credential
LCPC
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
LPC8520 MD
Self-reported in NPPES; status is on the state search
Practice location
6200 Baltimore Ave Ste 300, Riverdale, MD 20737
Phone
(301) 500-0311
Enumerated
Sep 27, 2017
Record last updated
Nov 15, 2024
Medicare enrollment
Enrolled (PECOS I20250714002054); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 2014
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 6200 Baltimore Ave Ste 300

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jinmee Graham, ND, MPHNaturopath1528739018
  2. Nneka Jefferson, LICSW, LCSW-C, LCSWClinical Social Worker1225466931

Verify Nicole Courtney Twaalfhoven in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license LPC8520
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Nicole Courtney Twaalfhoven among 4,201 mental health counselor records in Maryland

Nicole Courtney Twaalfhoven, LCPC is one of 4,201 mental health counselor records with a practice address in Maryland. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2017, is newer than 26% of them.

  • NPI issued2017 · 26% of these records are older, 71% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2014 · median 2016 among the 472 with a school on file
  • Record last updated2024 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 mental health counselor records list a practice address in Riverdale

They are 13 of the 448 NPPES records with a practice address in Riverdale, and 4,201 mental health counselor records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 mental health counselor records with the nearest ZIP codes

  1. Chinedu Akubudike, MARiverdale, MD 207371942515960
  2. Michaelle AndreRiverdale, MD 207371770144875
  3. Jennifer HartRiverdale, MD 207371164905311
  4. Felicite Neal, LCSW-CRiverdale, MD 207371952565137
  5. Andrea OliverRiverdale, MD 207371437963709
  6. Jeri PriceRiverdale, MD 207371902636947
  7. Melissa ProsperRiverdale, MD 207371437984788
  8. Sonia SherlekarRiverdale, MD 207371811717671

Common questions

What is Nicole Courtney Twaalfhoven, LCPC's NPI number?

Nicole Courtney Twaalfhoven, LCPC's National Provider Identifier (NPI) is 1003325515, issued on Sep 27, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Nicole Courtney Twaalfhoven, LCPC located?

The NPPES record lists a practice address at 6200 Baltimore Ave Ste 300, Riverdale, MD, 20737. Phone: (301) 500-0311. Providers update this record themselves, so call before visiting.

How can I verify Nicole Courtney Twaalfhoven, LCPC's license?

NPPES lists Maryland license number LPC8520, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.