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NICHOLAS MCLEAN ELLIS
NPI 1861178667
Nurse Practitioner - Psychiatric/Mental Health in Baltimore, MD

Active since June 26, 2023PECOS EnrolledAccepts Medicare Assignment
UNIV OF MARYLAND MEDICAL CTR, 22 S GREENE ST, BALTIMORE, MD 21201(410) 328-8667 Get Directions Write a Review

NPPES record last updated: June 26, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Nicholas Mclean Ellis NPPES

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

NICHOLAS MCLEAN ELLIS (NPI 1861178667) is an individual psychiatric/mental health provider in Baltimore, Maryland, licensed in Maryland (244221) and active in the NPI registry since June 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1861178667
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameNICHOLAS MCLEAN ELLIS
Location AddressUNIV OF MARYLAND MEDICAL CTR, 22 S GREENE STBaltimore, MD 21201
Mailing Address4174 Hooper RdNew Windsor, MD 21776 · (831) 241-1458
Phone(410) 328-8667
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateJune 26, 2023
NPPES CertifiedJune 26, 2023
✔ NPI 1861178667 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MD · 244221
UNIV OF MARYLAND MEDICAL CTR, 22 S GREENE ST, Baltimore, MD 21201
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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

Nicholas Mclean Ellis 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 ID9739620733
PECOS Enrollment IDI20240918000483, I20250122000782
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 Reassignments

2

Medicare enrollment records show Nicholas Ellis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Maryland General Clinical Practice Group, Inc.
0.3 mi
Psychiatry
827 LINDEN AVE STE B
Baltimore, MD 21201
  • Reassigned Medicare billing, Maryland enrollment
  • 128 clinicians in this Medicare group
NPI 1689413197 (410) 225-8240
Psych Associates Of Maryland LLC
8.5 mi
Psychologist
1447 YORK RD STE 601
Timonium, MD 21093
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • 191 clinicians in this Medicare group
NPI 1891721981 (410) 823-6408

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 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.

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 Nicholas Ellis's NPI number?

The NPI number for Nicholas Ellis is 1861178667. It was assigned to this individual provider in the NPPES registry on June 26, 2023.

Where is Nicholas Ellis located?

Nicholas Ellis practices at Univ Of Maryland Medical Ctr, 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 328-8667.

What is Nicholas Ellis's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Nicholas Ellis enrolled in Medicare?

Yes. Nicholas Ellis 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 organizations bill Medicare for Nicholas Ellis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Ellis reassigns Medicare benefits to 2 organizations: Maryland General Clinical Practice Group, Inc. (Baltimore, MD) and Psych Associates Of Maryland LLC (Timonium, MD). Each 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 Nicholas Ellis'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 Nicholas Ellis was last updated on June 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.