ALEATHA DENISE REITSMA-MATHIAS MD
NPI 1194786475
Hospitalist in Brighton, MI

Active since March 28, 2006PECOS EnrolledAccepts Medicare Assignment
8001 CHALLIS RD, BRIGHTON, MI 48116(734) 998-2020 Get Directions Write a Review

NPPES record last updated: May 20, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 20, 2026, Aug 7, 2024 (2 updates tracked since 2024).

About Aleatha Denise Reitsma-mathias Md NPPES

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

ALEATHA DENISE REITSMA-MATHIAS MD (NPI 1194786475) is an individual hospitalist provider in Brighton, Michigan, licensed in Florida (ME152672) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1194786475
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameALEATHA DENISE REITSMA-MATHIASCredential: MD
Location Address8001 CHALLIS RDBrighton, MI 48116-7446
Mailing AddressPo Box 112019Naples, FL 34108-0134 · (239) 624-6400
Sole ProprietorNo
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 1998
Enumeration DateMarch 28, 2006
Last NPPES UpdateMay 20, 20262 updates tracked since enumeration
NPPES CertifiedMay 20, 2026
NPI 1194786475 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in FL · ME152672
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License 4301072313 (MI)
8001 CHALLIS RD, Brighton, MI 48116

Secondary Practice Locations 2

Location 15301 E Huron River DrYpsilanti, MI 48197-1051 · Phone (877) 336-6307 · Fax (734) 712-3855
Location 2350 7th St NNaples, FL 34102-5754 · Phone (239) 624-3997

Other Identifiers 14

Other14857IA · Avera Health Plan
Other426038405IA · Selectfirst
Other49409IA · Sioux Valley Health Plan
Medicaid112262800FL
Medicaid1484964IA
Other5682027IA · First Health
OtherH53025IA · Coventry Health Care
Medicaid0484964IA
Other249977IA · Midlands Choice
Other07878IA · Bcbs - Er Location
Other720911046506IA · Preferred One
Other9236800IA · Dakotacare
Other04-08715IA · Medica
Other2MG2SFL · Bcbs

Accepted Insurance

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

Aleatha Denise Reitsma-mathias Md 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 ID9638150824
PECOS Enrollment IDI20040525000676
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 6

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 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.
133 services66 patients
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.
85 services52 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.
79 services74 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.
71 services62 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
70 services68 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
18 services18 patients

Hospital Affiliations CMS Care Compare 2

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

University Of Michigan Health System

Acute Care Hospitals · Ann Arbor, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230046
Location1500 E Medical Center Drive, Spc 5474Ann Arbor, MI 48109 · Washtenaw County
Emergency services Birthing friendly

Saint Joseph Mercy Livingston Hospital

Acute Care Hospitals · Howell, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230069
Location620 Byron RdHowell, MI 48843 · Livingston County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48116 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
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Surgery (Pediatric Surgery)
8001 CHALLIS RD
BRIGHTON, MI 48116
Pediatrics
8001 CHALLIS RD
BRIGHTON, MI 48116
Nurse Practitioner
8001 CHALLIS RD
BRIGHTON, MI 48116
Student in an Organized Health Care Education/Training Program
8001 CHALLIS RD
BRIGHTON, MI 48116
Student in an Organized Health Care Education/Training Program
8001 CHALLIS RD
BRIGHTON, MI 48116
Internal Medicine
8001 CHALLIS RD
BRIGHTON, MI 48116
Student in an Organized Health Care Education/Training Program
8001 CHALLIS RD
BRIGHTON, MI 48116
Internal Medicine
8001 CHALLIS RD
BRIGHTON, MI 48116

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 Aleatha Reitsma-mathias's NPI number?

The NPI number for Aleatha Reitsma-mathias is 1194786475. It was assigned to this individual provider in the NPPES registry on March 28, 2006.

Where is Aleatha Reitsma-mathias located?

Aleatha Reitsma-mathias practices at 8001 Challis Rd, Brighton, MI 48116. The listed phone number is (734) 998-2020.

What is Aleatha Reitsma-mathias's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Aleatha Reitsma-mathias enrolled in Medicare?

Yes. Aleatha Reitsma-mathias 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.

What insurance does Aleatha Reitsma-mathias accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community and Priority Health list Aleatha Reitsma-mathias 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 Aleatha Reitsma-mathias affiliated with any hospitals?

According to CMS data, Aleatha Reitsma-mathias is affiliated with University Of Michigan Health System and Saint Joseph Mercy Livingston Hospital.

When was this NPI record last updated?

The NPPES record for Aleatha Reitsma-mathias was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.