DR. JOSEPH P MARNELL (MD) – Psychiatry Physician, NPI 1801835103

DR. JOSEPH P MARNELL (MD) is a healthcare provider. based in Greenbelt, Maryland. specializing in PSYCHIATRY. They hold the professional credentials MD. They hold a License No. D0028213 (MD). The NPI Number for DR. JOSEPH P MARNELL (MD) is 1801835103

Main info

Male
52 Years Of Experience
Accepts Medicare Assignment
Name
DR. JOSEPH P MARNELL (MD)
NPI
1801835103
Phone
(301) 982-3437
Address
7474 Greenway Center Dr
Enumeration Date
5 June 2006
Last Update Date
10 November 2020

Doctor Profile

Medical School Name
TULANE UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
3206825225
Graduation Year
1974 (52 years ago)
PAC ID
1951395417
Group Practice PAC ID
4587573613
Professional Enrollment ID
I20100524000138
Address ID
MN553021109AN440XXEXXX400

Contacts

Secure Messaging
jmarnell106359@excellian.direct.allina.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience73
Completeness85
Years active:20State licenses:2Other namesUpdated within 12 months

840 PSYCHIATRY in MD

Provider Addresses for DR. JOSEPH P MARNELL (MD)

  • 7474 Greenway Center Dr

    Suite 730

    Greenbelt, MD 207703504

    Phone: (301) 982-3437

    Fax: (301) 982-9452

    Type: Location

  • Chicago Av, Washington Avenue South, Minneapolis, Hennepin County, Minnesota, 55415:55454, United States

    MINNEAPOLIS, MN 554071321

    Phone: (612) 262-9000

    Type: Mailing

  • 260, Osborne Road Northeast, Fridley, Anoka County, Minnesota, 55432, United States

    FRIDLEY, MN 554322866

    Phone: (763) 236-3800

    Fax: (763) 236-3821

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2010-05-24

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20100524000138IPsychiatryMNTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes13222$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes5223$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes2322$0
99239Hospital discharge day management, more than 30 minutes1817$0
View full utilization report →

Insurance plans in this area (ZIP 20770)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4587573613View full group profile

Reviews

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Frequently asked questions

Can I verify DR. JOSEPH P MARNELL (MD) with an NPI only?
You can start verification with NPI 1801835103 for DR. JOSEPH P MARNELL (MD), then check state licensing separately.
Is DR. JOSEPH P MARNELL (MD) still practicing?
DR. JOSEPH P MARNELL (MD) is currently listed as active in the public NPI registry.
What is DR. JOSEPH P MARNELL (MD) best known for clinically?
Directory data describes DR. JOSEPH P MARNELL (MD) with Psychiatry Physician. Clinical services aligned with this taxonomy classification.
Where is DR. JOSEPH P MARNELL (MD) based?
DR. JOSEPH P MARNELL (MD) is tied to Greenbelt, Maryland in the data we show; additional addresses may exist on the full record.
How many locations tie to this NPI?
3 practice locations appear in the available data.

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