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MARION TAN DNP
NPI 1427666304
Nurse Practitioner - Adult Health in Long Grove, IL

Active since July 16, 2020PECOS EnrolledAccepts Medicare Assignment
3880 SALEM LAKE DR STE F, LONG GROVE, IL 60047(847) 719-2220(847) 719-2265 Get Directions Write a Review

NPPES record last updated: September 9, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 9, 2024, Jul 8, 2024, Oct 6, 2022 and 1 more (4 updates tracked since 2020).

About Marion Tan Dnp NPPES

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

MARION TAN DNP (NPI 1427666304) is an individual adult health provider in Long Grove, Illinois, licensed in Illinois (209025913) and active in the NPI registry since July 2020. He is enrolled in Medicare PECOS, is affiliated with Advocate Lutheran General Hospital, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1427666304
Entity TypeIndividualMale
Primary Taxonomy363LA2200X
Provider Legal NameMARION TANCredential: DNP
Location Address3880 SALEM LAKE DR STE FLong Grove, IL 60047-5292
Mailing Address3880 Salem Lake Dr Ste FLong Grove, IL 60047-5292 · (847) 719-2220 · Fax (847) 719-2265
Phone(847) 719-2220
Fax(847) 719-2265
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJuly 16, 2020
Last NPPES UpdateSeptember 9, 20244 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2024
✔ NPI 1427666304 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in IL · 209025913
Also ListedRegistered NurseTaxonomy 163W00000X · License 041.456357 (IL)
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 209.025913 (IL)
3880 SALEM LAKE DR STE F, Long Grove, IL 60047
Open in Google Maps ↗

Other Identifiers 2

Medicaid209025913IL
OtherMT8489785IL · Dea

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

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

Marion Tan Dnp 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 ID5991183600
PECOS Enrollment IDI20220609000549
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 Marion Tan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Best Practices Inpatient Care, Ltd.
6.0 mi
Internal Medicine
106 BARRINGTON COMMONS CT UNIT 1790
Barrington, IL 60011
  • Reassigned Medicare billing, Illinois enrollment
  • 155 clinicians in this Medicare group
NPI 1073549713 (847) 719-2220
Access Community Health Network
6.9 mi
Federally Qualified Health Center (FQHC)
1120 N ARLINGTON HEIGHTS RD
Arlington Heights, IL 60004
  • Reassigned Medicare billing, Illinois enrollment
  • 413 clinicians in this Medicare group
NPI 1780879023 (847) 342-1554

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Advocate Lutheran General Hospital

Acute Care Hospitals · Park Ridge, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140223
Location1775 Dempster StPark Ridge, IL 60068 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60047 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

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.

HELEN E OKORIE NP
Nurse Practitioner (Adult Health)
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
JOCELYN V. DE JESUS MD
Internal Medicine
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
DR. DANIEL R. DI IORIO MD, DC
Family Medicine
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
DR. SINDHU KURUP MD
Internal Medicine
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
JERIC AGNES FNP-BC
Nurse Practitioner (Adult Health)
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
MISS MONICA LISA BIESZCZAD FNP-BC
Nurse Practitioner (Adult Health)
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
DR. NICOLE SOBKOWICZ DO
Internal Medicine
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 924-8747
ANGELA ROSE DEPA
Nurse Practitioner (Family)
3880 SALEM LAKE DR STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220

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 Marion Tan's NPI number?

The NPI number for Marion Tan is 1427666304. It was assigned to this individual provider in the NPPES registry on July 16, 2020.

Where is Marion Tan located?

Marion Tan practices at 3880 Salem Lake Dr Ste F, Long Grove, IL 60047. The listed phone number is (847) 719-2220.

What is Marion Tan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Marion Tan enrolled in Medicare?

Yes. Marion Tan 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 Marion Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marion Tan reassigns Medicare benefits to 2 organizations: Best Practices Inpatient Care, Ltd. (Barrington, IL) and Access Community Health Network (Arlington Heights, IL). 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 Marion Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marion Tan accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Marion Tan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Marion Tan affiliated with any hospitals?

According to CMS data, Marion Tan is affiliated with Advocate Lutheran General Hospital.

When was this NPI record last updated?

The NPPES record for Marion Tan was last updated on September 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.