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DR. TANJA ANN ANDRZEJEWSKI-CHU M.D.
NPI 1952510380
Emergency Medicine in Troy, MI

Active since May 22, 2007PECOS EnrolledAccepts Medicare Assignment
44201 DEQUINDRE RD, TROY, MI 48085(248) 964-5111 Get Directions Write a Review

NPPES record last updated: July 18, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Tanja Ann Andrzejewski-chu M.d. NPPES

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

DR. TANJA ANN ANDRZEJEWSKI-CHU M.D. (NPI 1952510380) is an individual emergency medicine provider in Troy, Michigan, licensed in Michigan (4301083965) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital - Grosse Pointe, and maintains a secondary practice location in Lenox.

NPPES Registry Identity

NPI1952510380
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. TANJA ANN ANDRZEJEWSKI-CHUCredential: M.D.
Location Address44201 DEQUINDRE RDTroy, MI 48085-1117
Mailing Address26901 Beaumont Blvd Ste 3dSouthfield, MI 48033-3849
Phone(248) 964-5111
Sole ProprietorNo
Medical School CMSWayne State University School Of MedicineGraduated 2004
Enumeration DateMay 22, 2007
Last NPPES UpdateJuly 18, 2022
NPPES CertifiedJuly 18, 2022
✔ NPI 1952510380 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in MI · 4301083965
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
44201 DEQUINDRE RD, Troy, MI 48085
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Secondary Practice Location 1

Location 136555 26 Mile Rd Ste 1100Lenox, MI 48048-3186 · Phone (947) 523-4040

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.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

Dr. Tanja Ann Andrzejewski-chu 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 ID1052554821
PECOS Enrollment IDI20130826000922
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 Tanja Andrzejewski-chu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Beaumont Medical Group Hospital -Based Services
8.8 mi
Hospitalist
3601 W 13 MILE RD
Royal Oak, MI 48073
  • Reassigned Medicare billing, Michigan enrollment
  • 946 clinicians in this Medicare group
NPI 1427567858 (248) 898-5000
Henry Ford Heath System
17 mi
Vascular & Interventional Radiology
2799 W GRAND BLVD
Detroit, MI 48202
  • Reassigned Medicare billing, Michigan enrollment
  • Medicare enrollment name: Henry Ford Health System
  • 1,886 clinicians in this Medicare group
NPI 1013119817 (313) 916-2600

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

Areas of Expertise CMS Part B claims 7

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
92 services35 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
81 services65 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
38 services18 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
37 services34 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
29 services29 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
24 services24 patients

Hospital Affiliations CMS Care Compare 2

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

Beaumont Hospital - Grosse Pointe

Acute Care Hospitals · Grosse Pointe, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230089
Location468 Cadieux RdGrosse Pointe, MI 48230 · Wayne County
Emergency services Birthing friendly

Beaumont Hospital, Troy

Acute Care Hospitals · Troy, MI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230269
Location44201 Dequindre RoadTroy, MI 48085 · Oakland County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48085 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
$90.76 typical visit price
range $58.04 – $177.36
Typical copayment $22.69 (range $14.51 – $44.34)
Most-billed visit code 99203
Established Patient
$102.35 typical visit price
range $18.32 – $143.49
Typical copayment $25.58 (range $4.58 – $35.87)
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.

HARINI ERUPAKA REDDY M.D.
Pediatrics
44201 DEQUINDRE RD
TROY, MI 48085
Oakland County (248) 964-1007
JOSLEEN ALBISHARA
Pharmacist
44201 DEQUINDRE RD
TROY, MI 48085
Oakland County (248) 964-5000
STEPHANIE ANNE DAVENPORT PAC
Physician Assistant
44201 DEQUINDRE RD
TROY, MI 48085
Oakland County (248) 964-4866
KRISTEN M LIGHT DNP, RN, AGPCNP-BC
Nurse Practitioner (Primary Care)
44201 DEQUINDRE RD
TROY, MI 48085
Oakland County (248) 964-5000
ELLEN O MCGUIRE
Physician Assistant
44201 DEQUINDRE RD
TROY, MI 48085
Oakland County (248) 964-4866
SAMANTHA GRACE HENDERSON PA-C
Physician Assistant
44201 DEQUINDRE RD
TROY, MI 48085
Oakland County (248) 964-5000
DAVID DONALDSON
Emergency Medicine
44201 DEQUINDRE RD, EC
TROY, MI 48085
Oakland County (248) 964-8787
SHARON LINDOW
Speech-Language Pathologist
44201 DEQUINDRE RD
TROY, MI 48085
Oakland County (248) 964-5000

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 Tanja Andrzejewski-chu's NPI number?

The NPI number for Tanja Andrzejewski-chu is 1952510380. It was assigned to this individual provider in the NPPES registry on May 22, 2007.

Where is Tanja Andrzejewski-chu located?

Tanja Andrzejewski-chu practices at 44201 Dequindre Rd, Troy, MI 48085. The listed phone number is (248) 964-5111.

What is Tanja Andrzejewski-chu's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Tanja Andrzejewski-chu enrolled in Medicare?

Yes. Tanja Andrzejewski-chu 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 Tanja Andrzejewski-chu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tanja Andrzejewski-chu reassigns Medicare benefits to 2 organizations: Beaumont Medical Group Hospital -Based Services (Royal Oak, MI) and Henry Ford Heath System (Detroit, MI). 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 Tanja Andrzejewski-chu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tanja Andrzejewski-chu accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Tanja Andrzejewski-chu 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 Tanja Andrzejewski-chu affiliated with any hospitals?

According to CMS data, Tanja Andrzejewski-chu is affiliated with Beaumont Hospital - Grosse Pointe and Beaumont Hospital, Troy.

When was this NPI record last updated?

The NPPES record for Tanja Andrzejewski-chu was last updated on July 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.