DOUGLAS MARK IKELHEIMER (MD) – Neurology Physician, NPI 1508979519

DOUGLAS MARK IKELHEIMER (MD) is a healthcare provider. based in Quincy, Illinois. specializing in PSYCHIATRY. They hold the professional credentials MD. They hold a License No. C163816 (CA). The NPI Number for DOUGLAS MARK IKELHEIMER (MD) is 1508979519

Main info

Male
29 Years Of Experience
Accepts Medicare Assignment
Name
DOUGLAS MARK IKELHEIMER (MD)
NPI
1508979519
Phone
(217) 223-1200
Address
1005 Broadway St
Enumeration Date
16 August 2006
Last Update Date
14 November 2025

Doctor Profile

Medical School Name
STATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Secondary Phone
5405368700
Graduation Year
1997 (29 years ago)
PAC ID
1759347396
Group Practice PAC ID
0244134021
Professional Enrollment ID
I20210119001213
Address ID
VA226012808WI1840XSTXX300
Telehealth
Yes

Contacts

Secure Messaging
dikelheimer170585@phsdirect.pinnaclehealth.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience98
Completeness95
Years active:19State licenses:7Other names

1,367 PSYCHIATRY in IL

Provider Addresses for DOUGLAS MARK IKELHEIMER (MD)

  • 1005 Broadway St

    Quincy, IL 623012834

    Phone: (217) 223-1200

    Fax: (217) 224-9383

    Type: Location

  • 424 Savannah Rd

    Lewes, DE 199581462

    Phone: (302) 645-3499

    Fax: (302) 644-4830

    Type: Location

  • 8700 Beverly Blvd

    West Hollywood, CA 900481804

    Phone: (310) 423-3465

    Fax: (310) 423-8397

    Type: Location

  • 1020 First Colonial Rd Ste A

    Virginia Beach, VA 234543078

    Phone: (757) 395-1850

    Type: Location

  • 1500 Commonwealth Ave

    Williamsburg, VA 231855229

    Phone: (757) 585-2250

    Fax: (757) 903-2285

    Type: Location

  • Denver Health Medical Center, 777, Bannock Street, Lincoln Park, Denver, Denver County, Colorado, 80204, United States

    MC 7782

    DENVER, CO 802044507

    Phone: (303) 436-6000

    Type: Location

  • 205 S Front St Fl 5

    Harrisburg, PA 171041619

    Phone: (717) 231-8360

    Fax: (717) 231-8358

    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: 2022-05-05

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 11 Medicare enrollment records; no due dates published yet.

Enrollment records

11

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
I20041206000996IPsychiatryCOTBD
I20140224001017IPsychiatryNCTBD
I20150529002621IPsychiatryWATBD
I20171201002744IPsychiatryMTTBD
I20181113001982IPsychiatryILTBD
I20200402001117IPsychiatryNJTBD
I20210119001213IPsychiatryVATBD
I20220112001848IPsychiatryFLTBD
I20220411002526IPsychiatryCATBD
I20220420002024IPsychiatryDETBD
I20220505000334IPsychiatryWITBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 62301)

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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: 0244134021View full group profile
NameSpecialtyState
Family PracticeVA
G A S T R O E N T E R O L O G YGA
Marriage And Family TherapistNY
Clinical PsychologistVA
Physical Medicine And RehabilitationMD
O B S T E T R I C S/ G Y N E C O L O G YVA
-VA
-VA
U R O L O G YVA
Nurse PractitionerMD

Reviews

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Frequently asked questions

Does DOUGLAS MARK IKELHEIMER (MD) have a public NPI I can cite?
Public records show DOUGLAS MARK IKELHEIMER (MD) under NPI 1508979519.
Is DOUGLAS MARK IKELHEIMER (MD)'s NPI status active today?
Active status means DOUGLAS MARK IKELHEIMER (MD)'s NPI record is not deactivated in the public file.
What type of care does DOUGLAS MARK IKELHEIMER (MD) provide?
DOUGLAS MARK IKELHEIMER (MD)'s profile centers on Neurology Physician. Clinical services aligned with this taxonomy classification.
Is DOUGLAS MARK IKELHEIMER (MD) tied to Quincy, Illinois?
If you are local to Quincy, Illinois, DOUGLAS MARK IKELHEIMER (MD) may be relevant to your search.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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