DR. JAMES STEVEN MARKS M.D.
NPI 1841305018
Psychiatry & Neurology - Psychiatry in Vernon Hills, IL

Q: What is James Marks's NPI number?

The NPI number for James Marks is 1841305018. It was assigned to this individual provider in the NPPES registry on August 20, 2006.

Q: What is James Marks's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for James Marks was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.

Active since August 20, 2006PECOS EnrolledAccepts Medicare Assignment

977 LAKEVIEW PKWY, SUITE 170, VERNON HILLS, IL 60061(847) 367-1611(847) 367-4079 Get Directions Write a Review

NPPES record last updated: October 21, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. James Steven Marks M.d. NPPES

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

DR. JAMES STEVEN MARKS M.D. (NPI 1841305018) is an individual psychiatry provider in Vernon Hills, Illinois, licensed in Illinois (036-080975) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1988).

NPPES Registry Identity

NPI1841305018

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. JAMES STEVEN MARKSCredential: M.D.

Location Address977 LAKEVIEW PKWY, SUITE 170Vernon Hills, IL 60061-1400

Mailing Address977 Lakeview Pkwy, Suite 170Vernon Hills, IL 60061-1400 · (847) 367-1611 · Fax (847) 367-4079

Phone(847) 367-1611

Fax(847) 367-4079

Sole ProprietorNo

Medical School CMSOtherGraduated 1988

Enumeration DateAugust 20, 2006

Last NPPES UpdateOctober 21, 2025

NPPES CertifiedOctober 21, 2025

✔ NPI 1841305018 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in IL · 036-080975

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

977 LAKEVIEW PKWY, Vernon Hills, IL 60061

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. James Steven Marks M.d. 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 ID3274581665

PECOS Enrollment IDI20050411000789

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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

465 services143 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60061 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

$181.38 typical visit price

range $59.81 – $181.38

Typical copayment $45.34 (range $14.95 – $45.34)

Most-billed visit code 99205

Established Patient

$74.38 typical visit price

range $19.15 – $147.12

Typical copayment $18.59 (range $4.78 – $36.78)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRB COUNSELING, SC

Social Worker (Clinical)

977 LAKEVIEW PKWY, #155
VERNON HILLS, IL 60061

Lake County (847) 918-0129

JOAN AJIDE

Nurse Practitioner (Psychiatric/Mental Health)

977 LAKEVIEW PKWY
VERNON HILLS, IL 60061

Lake County (847) 367-1611

DR. CATHERINE A. ARCE PH.D.

Psychologist (Clinical)

977 LAKEVIEW PKWY, SUITE 180
VERNON HILLS, IL 60061

Lake County (847) 549-6750

DR. DANIELLA LYDIA WIEGAND PSY.D.

Psychologist (Clinical)

977 LAKEVIEW PKWY, SUITE 180
VERNON HILLS, IL 60061

Lake County (847) 549-6650

PSYCHOSOCIAL INTERVENTIONS, P.C.

Psychologist (Cognitive & Behavioral)

977 LAKEVIEW PKWY, SUITE 1008
VERNON HILLS, IL 60061

Lake County (312) 618-1921

MS. JUDITH MICHELLE SHIFFMAN LCSW

Counselor

977 LAKEVIEW PKWY, SUITE 180
VERNON HILLS, IL 60061

Lake County (847) 361-2334

MRS. MARY TRIPTI ZACHARIA P.T.

Physical Therapist

977 LAKEVIEW PKWY, STE 109
VERNON HILLS, IL 60061

Lake County (847) 932-1079

DR. RICHARD NEAL BOLNICK PSYD

Psychologist (Clinical)

977 LAKEVIEW PKWY, SUITE 110
VERNON HILLS, IL 60061

Lake County (847) 549-6650

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 James Marks's NPI number?

The NPI number for James Marks is 1841305018. It was assigned to this individual provider in the NPPES registry on August 20, 2006.

Where is James Marks located?

James Marks practices at 977 Lakeview Pkwy Suite 170, Vernon Hills, IL 60061. The listed phone number is (847) 367-1611.

What is James Marks's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is James Marks enrolled in Medicare?

Yes. James Marks 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.

When was this NPI record last updated?

The NPPES record for James Marks was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.