Fethi Onal
Internal Medicine β’ Grosse Pointe Woods, MI
19251 Mack Ave Ste 333
Grosse Pointe Woods, MI 482362898
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on March 23, 2022; this date does not establish years in practice.
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Published CMS data list 195 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium β 31 prescription fills, including refills.
- Metoprolol Succinate β 29 prescription fills, including refills.
- Metformin Hcl β 18 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 11 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 70% of clinicians listed under Internal Medicine in Grosse Pointe Woods, MI (2024, 15 clinicians with data). Median for this group: 393. Middle half: 170 to 925.
Fewer Part D prescriptions than 60% of clinicians listed under Internal Medicine in Michigan (2024, 3,463 clinicians with data). Median for this group: 801. Middle half: 94 to 5,032.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 150 in 2023 to 195 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023β2024.
Practice Location & Contact Primary Location
19251 Mack Ave Ste 333
Grosse Pointe Woods, MI 482362898
NPPES lists 1 additional practice-address record in Detroit, MI. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Henry Ford Health St. John Hospital. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2019
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
333 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$29,529 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $285.91 across 5 records.
By nature of payment
- Food and Beverage: $285.91 across 5 records.
Reporting-company totals (3 largest of 5)
- Boehringer Ingelheim Pharmaceuticals, Inc.: $113.40 across 1 record.
- ZOLL Services LLC (A/K/A ZOLL LifeCor Corp): $93.86 across 1 record.
- Neurocrine BioSciences, Inc.: $31.67 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
7 years (graduated 2019)
CMS Doctors and Clinicians data list 2019 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2022
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Fethi Onal has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Fethi Onal as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Grosse Pointe Woods and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 70% of clinicians listed under Internal Medicine in Grosse Pointe Woods, MI (2024, 15 clinicians with data). Median for this group: 393. Middle half: 170 to 925.
Fewer Part D prescriptions than 60% of clinicians listed under Internal Medicine in Michigan (2024, 3,463 clinicians with data). Median for this group: 801. Middle half: 94 to 5,032.
Part D drug cost
Close to the middle for clinicians listed under Internal Medicine in Grosse Pointe Woods, MI (2024, 15 clinicians with data). Median for this group: $30,320. Middle half: $8,226 to $92,270.
Close to the middle for clinicians listed under Internal Medicine in Michigan (2024, 3,463 clinicians with data). Median for this group: $66,958. Middle half: $1,946 to $462,816.
21 active clinicians are listed under Internal Medicine with a practice address in Grosse Pointe Woods, MI (5,741 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Grosse Pointe Woods
4.8% of these 21 clinicians have the CMS telehealth indicator.
61.9% of these 21 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 30% from 150 in 2023 to 195 in 2024.
- 2023: 150
- 2024: 195
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30-day fills
30-day fills increased 28% from 260 in 2023 to 333 in 2024.
- 2023: 260
- 2024: 333
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Part D drug cost
Part D drug cost increased 22% from $24,243 in 2023 to $29,529 in 2024.
- 2023: $24,243
- 2024: $29,529
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): fewer than 11 records totaling $285.91.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $113.40 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) |
Food and Beverage
Cash or cash equivalent
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LifeVest | General | $93.86 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $31.67 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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REXULTI | General | $25.40 |
| Eisai Inc. |
Food and Beverage
In-kind items and services
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Leqembi | General | $21.58 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 31 | 2,010 | $231.13 | β |
| Metoprolol Succinate | Metoprolol Succinate | 29 | 1,170 | $176.63 | β |
| Metformin Hcl | Metformin Hcl | 18 | 900 | $83.07 | β |
| Trulicity | Dulaglutide | 18 | 868 | $28,080.01 | β |
| Clopidogrel | Clopidogrel Bisulfate | 16 | 720 | $84.87 | β |
| Furosemide | Furosemide | 16 | 720 | $53.66 | β |
| Losartan Potassium | Losartan Potassium | 16 | 1,320 | $191.85 | β |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 15 | 262 | $463.86 | β |
| Sertraline Hcl | Sertraline Hcl | 12 | 360 | $38.94 | β |
| Amlodipine Besylate | Amlodipine Besylate | 12 | 1,080 | $71.03 | β |
| Omeprazole | Omeprazole | 12 | 360 | $53.52 | β |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-07-08NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20250519000866
MI
9931588209
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Henry Ford Health St. John Hospital
19251 Mack Ave, Grosse Pointe Woods, MI 482362898
Phone: 3133437280
Secondary Practice Locations
22201 Moross Rd Ste 50
Detroit, MI 482362166
Phone: 3133437774
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Endocrinology, Diabetes & Metabolism
Doctor of Medicine (M.D.)
Internal Medicine - Infectious Disease
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 19251 MACK AVE STE 333, GROSSE POINTE WOODS, MI 482362898 (Tel: 3133437280)
Registered at 19251 MACK AVE STE 333, GROSSE POINTE WOODS, MI 482362898 (Tel: 3133437280)
NPI status registered as active in NPPES database
Registered at 22201 MOROSS RD STE 50, DETROIT, MI 482362166 (Tel: 3133437774)
Registered at 22201 MOROSS RD STE 50, DETROIT, MI 482362166 (Tel: 3133437774)
Recorded as FETHI ONAL
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Grosse Pointe Woods
- Dr. Jessica Misich-Jabiro, MD
- Dr. Jacob Compton, DO
- Dr. Virginia Zacharias, MD
- Dr. Donald Rozzell, MD
- Dr. Brandon Yanik, MD
- Dr. Ronald Hertz, DO
Mailing Address
19251 Mack Ave Ste 333
Grosse Pointe Woods, MI 482362898
Phone: 3133437280