MR. HOWARD R BAKER (D.O.) – Internal Medicine Physician, NPI 1558326439

Internal Medicine Physician

MR. HOWARD R BAKER (D.O.) is a healthcare provider. based in Mundelein, Illinois. specializing in INTERNAL MEDICINE. They hold the professional credentials D.O.. They hold a License No. 036087725 (IL). The NPI Number for MR. HOWARD R BAKER (D.O.) is 1558326439

Main info

Male

35 Years Of Experience

Accepts Medicare Assignment

Name

MR. HOWARD R BAKER (D.O.)

NPI

1558326439

Phone

(847) 837-8442

Address

3220 W IL ROUTE 60

Enumeration Date

20 April 2006

Last Update Date

22 November 2023

Doctor Profile

Medical School Name

DES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES

Secondary Phone

3129266146

Graduation Year

1991 (35 years ago)

PAC ID

5698842979

Group Practice PAC ID

4587576814

Professional Enrollment ID

I20080929000460

Address ID

IL600155239DE350XXRDXX400

Telehealth

Yes

Contacts

Secure Messaging

hbaker206570@direct.myadvocateaurora.org

FHIR Endpoint

https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience64

Completeness85

Years active:20State licenses:1Other namesUpdated within 12 months

8,824 INTERNAL MEDICINE in IL

Provider Addresses for MR. HOWARD R BAKER (D.O.)

3220 W IL ROUTE 60
MUNDELEIN, IL 60060
Phone: (847) 837-8442
Fax: (847) 837-8542
Type: Location
870 N MILWAUKEE AVE FL 2
VERNON HILLS, IL 600611521
Phone: (847) 535-7157
Fax: (847) 535-8210
Type: Location
3220 W IL Route 60
Mundelein, IL 60060
Phone: (847) 837-8442
Fax: (847) 837-8542
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 5 Open Payments records for all available years, with a total value of $338.

Total Amount is formed as General ($338) + Research ($0) + Ownership ($0) = $338.

Last reported payment date: 2024-09-18 • Largest payer in this snapshot: Abbott Laboratories ($138).

Total Amount

$338

General + Research + Ownership

Payments

Total payment records

General Amount

$338

General payments

Research Amount

Research funding

Ownership Amount

Ownership interests

Ownership Count

Ownership records

Last Payment Date

2024-09-18

Latest reported date

Top Companies

Largest payers in this snapshot

Company	Amount
Abbott Laboratories	$138
Amgen Inc.	$118
Baxter Healthcare	$61
Hologic Sales and Service, LLC	$22

View all Open Payments →|Open Payments Risk Radar →

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: 2008-09-29

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

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

Medicare enrolled
On CMS revalidation list
Due date assigned
Revalidate in PECOS

CMS enrollment records

Enrollment ID	Type	Specialty	State	Due date
I20080929000460	I	Internal Medicine	IL	TBD

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

HCPCS	Description	Services	Beneficiaries	Medicare allowed
99214	Established patient office or other outpatient visit, 30-39 minutes	590	356	$0
36415	Insertion of needle into vein for collection of blood sample	435	314	$0
99308	Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	272	113	$0
G0439	Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	179	179	$0
99309	Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	107	57	$0

View full utilization report →

Insurance plans in this area (ZIP 60060)

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Provider's Procedures

MR. HOWARD R BAKER (D.O.) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.

Specialty	Practice State	HCPCS Code	Description	Service Count	Beneficiary Count
INTERNAL MEDICINE	IL	81002	Urinalysis, manual test	45	34
INTERNAL MEDICINE	IL	85610	Blood test, clotting time	228	32
INTERNAL MEDICINE	IL	90670	Pneumococcal vaccine for injection into muscle	89	89

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: 4587576814View full group profile

Name	Specialty	State
DR. KRISTI A TOUGH DESAPRI (M.D.)	-	IL
DR. DON MARTINEZ (M.D.)	Diagnostic Radiology, Interventional Radiology	IL
DR. JOHN CHONGWON LEE (M.D.)	P A T H O L O G Y	IL
LAURA JEAN DAVIDSON (M.D.)	Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine	IL
MELISSA A MARTINEZ MATEO (M.D.)	G A S T R O E N T E R O L O G Y	IL
DR. DAVID SCOTT BURSTEIN (M.D.)	Internal Medicine	IL
GEORGIOS CHRISTOPOULOS (MD)	Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal Medicine	MN
MS. TANYA STANN (NURSE PRACTITIONER)	-	IL
CAROLINE LANG OVERMAN (PT, DPT)	Physical Therapist In Private Practice	IL
ANDRES CASTILLO	Nurse Practitioner	IL

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Frequently asked questions

How is MR. HOWARD R BAKER (D.O.) identified in CMS data?

CMS-hosted NPPES data lists MR. HOWARD R BAKER (D.O.) with NPI 1558326439.

Is MR. HOWARD R BAKER (D.O.) listed as active for patients and plans?

The listing shows MR. HOWARD R BAKER (D.O.) as active in the NPI system.

What is MR. HOWARD R BAKER (D.O.)'s primary classification?

Internal Medicine Physician is the headline specialty for MR. HOWARD R BAKER (D.O.) here. Clinical services aligned with this taxonomy classification.

Where is MR. HOWARD R BAKER (D.O.) based?

MR. HOWARD R BAKER (D.O.) is tied to Mundelein, Illinois in the data we show; additional addresses may exist on the full record.

Why does MR. HOWARD R BAKER (D.O.) have multiple addresses?

4 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.