THERESE MARIA SASSALOS M.D.
NPI 1477996502
Ophthalmology in Detroit, MI

Q: What is Therese Sassalos's NPI number?

The NPI number for Therese Sassalos is 1477996502. It was assigned to this individual provider in the NPPES registry on April 8, 2013. The provider is also known as Therese Peron.

Q: What is Therese Sassalos's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Therese Sassalos was last updated on August 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 April 08, 2013PECOS EnrolledAccepts Medicare Assignment

HENRY FORD HOSPITAL, 2799 W GRAND BLVD CFP 363, DETROIT, MI 48202(313) 916-2020 Get Directions Write a Review

NPPES record last updated: August 18, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 19, 2024, Jul 24, 2024, Dec 15, 2020 and 2 more (5 updates tracked since 2017).

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About Therese Maria Sassalos M.d. NPPES

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

THERESE MARIA SASSALOS M.D. (NPI 1477996502) is an individual ophthalmology provider in Detroit, Michigan, licensed in Michigan (4301102935) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS, is affiliated with Henry Ford Health Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1477996502

Entity TypeIndividualFemale

Primary Taxonomy207W00000X

Provider Legal NameTHERESE MARIA SASSALOSCredential: M.D.

Location AddressHENRY FORD HOSPITAL, 2799 W GRAND BLVD CFP 363Detroit, MI 48202

Mailing Address6777 W Maple RdWest Bloomfield, MI 48322-3013 · (248) 325-1091

Phone(313) 916-2020

Sole ProprietorNo

Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2013

Enumeration DateApril 8, 2013

Last NPPES UpdateAugust 18, 20255 updates tracked since enumeration

NPPES CertifiedAugust 18, 2025

✔ NPI 1477996502 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in MI · 4301102935

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

HENRY FORD HOSPITAL, Detroit, MI 48202

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Other Names 1

Former Name (1)Therese Peron

Secondary Practice Locations 2

Location 11961 S Telegraph RdBloomfield Hills, MI 48302-0246 · Phone (248) 325-1000

Location 21000 Wall StAnn Arbor, MI 48105-1912 · Phone (764) 764-4190

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health.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

Therese Maria Sassalos 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 ID446529085

PECOS Enrollment IDI20170713000187

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

Medicare enrollment records show Therese Sassalos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Henry Ford Health System

2.4 mi

Ophthalmology

2799 W GRAND BLVD
Detroit, MI 48202

Reassigned Medicare billing, Michigan enrollment
52 clinicians in this Medicare group

NPI 1861576266 (313) 876-8714

Regents Of The University Of Michigan

35 mi

Ophthalmology

1000 WALL STREET
Ann Arbor, MI 48105

Reassigned Medicare billing, Michigan enrollment
123 clinicians in this Medicare group

NPI 1568495299 (734) 763-1415

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 4

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.

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

53 services35 patients

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.

33 services24 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

25 services20 patients

Exam of retinal blood vessels using a special camera after injection of a dye 92235

This procedure, known as a fluorescein angiography, involves taking images of the back of your eye. A dye is injected into your arm that travels to your eye, highlighting the blood vessels in your retina. This helps identify any abnormalities.

14 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Henry Ford Health Hospital

Acute Care Hospitals · Detroit, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230053

Location2799 W Grand BlvdDetroit, MI 48202 · Wayne County

Emergency services Birthing friendly

Henry Ford Health West Bloomfield Hospital

Acute Care Hospitals · West Bloomfield, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230302

Location6777 West Maple RoadWest Bloomfield, MI 48322 · Oakland County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48202 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

$134.28 typical visit price

range $58.04 – $177.36

Typical copayment $33.57 (range $14.51 – $44.34)

Most-billed visit code 99204

Established Patient

$72.38 typical visit price

range $18.32 – $143.49

Typical copayment $18.09 (range $4.58 – $35.87)

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 14

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

MOHAMMAD RAOUFI MD

Pathology (Anatomic Pathology & Clinical Pathology)

HENRY FORD HOSPITAL, 2799 W GRAND BOULEVARD
DETROIT, MI 48202

Wayne County (313) 916-4027

MS. KATHLEEN ANN BRADY NP

Nurse Practitioner (Acute Care)

HENRY FORD HOSPITAL, 2799 WEST GRAND BLVD
DETROIT, MI 48202

Wayne County (313) 916-4546

TABINDEH JABEEN KHALID M.D.

Family Medicine

HENRY FORD HOSPITAL, 2799 W. GRAND BOULEVARD
DETROIT, MI 48202

Wayne County (313) 916-2600

DR. LISA MICHELLE TOMASELLO M.D.

Anesthesiology

HENRY FORD HOSPITAL, 2799 W. GRAND BOULEVARD
DETROIT, MI 48202

Wayne County (313) 916-4843

DR. JAMAL F SALEH M.D.

Psychiatry & Neurology (Psychiatry)

HENRY FORD HOSPITAL, 2799 W. GRAND BLVD
DETROIT, MI 48202

Wayne County (313) 916-2600

DR. ZACHARY PAUL PRICE M.D.

Anesthesiology

HENRY FORD HOSPITAL, 2799 W. GRAND BOULEVARD
DETROIT, MI 48202

Wayne County (313) 916-2600

DR. SUHAIR MAQUSI M.D.

Surgery

HENRY FORD HOSPITAL, 2799 W GRAND BOULEVARD
DETROIT, MI 48202

Wayne County (313) 916-3056

DR. MICHAEL LEE OWENS M.D.

Anesthesiology

HENRY FORD HOSPITAL, 2799 WEST GRAND BOULEVARD
DETROIT, MI 48202

Wayne County (313) 916-8234

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 Therese Sassalos's NPI number?

The NPI number for Therese Sassalos is 1477996502. It was assigned to this individual provider in the NPPES registry on April 8, 2013. The provider is also known as Therese Peron.

Where is Therese Sassalos located?

Therese Sassalos practices at Henry Ford Hospital 2799 W Grand Blvd Cfp 363, Detroit, MI 48202. The listed phone number is (313) 916-2020.

What is Therese Sassalos's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Therese Sassalos enrolled in Medicare?

Yes. Therese Sassalos 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 Therese Sassalos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Therese Sassalos reassigns Medicare benefits to 2 organizations: Henry Ford Health System (Detroit, MI) and Regents Of The University Of Michigan (Ann Arbor, 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 Therese Sassalos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Therese Sassalos accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Therese Sassalos 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 Therese Sassalos affiliated with any hospitals?

According to CMS data, Therese Sassalos is affiliated with Henry Ford Health Hospital and Henry Ford Health West Bloomfield Hospital.

When was this NPI record last updated?

The NPPES record for Therese Sassalos was last updated on August 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.