Dr. Thomas K Barriger , MD
Internal Medicine • Troy, MI
38865 Dequindre Rd, Suite 106
Troy, MI 480836812
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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Dr. Thomas Barriger is listed in NPPES under Internal Medicine.
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NPI assigned on April 4, 2006; this date does not establish years in practice.
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Published CMS data list 1,282 Original Medicare Part B services in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Published rows only; this is not a quality measure.
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Published Part B service records, 2020:
- 99214 — Established patient outpatient office visit: 298 service units.
- 99213 — Established patient outpatient office visit: 284 service units.
- 36415 — Insertion of needle into vein for collection of blood sample: 242 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2019 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2020). CPT notice
See all 13 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,755 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
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Published Part D records, 2021:
- Atorvastatin Calcium — 160 prescription fills, including refills.
- Losartan Potassium — 157 prescription fills, including refills.
- Amlodipine Besylate — 118 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 49 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 2,059 in 2017 to 1,282 in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2020.
Practice Location & Contact Primary Location
38865 Dequindre Rd
Suite 106
Troy, MI 480836812
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
266 people with Original Medicare in 2020
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2020.
Medicare-allowed amount
About $64,621 in 2020
The total amount Medicare approved for these services in 2020. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020.
Paid by Medicare
About $43,032 in 2020
The part of the Medicare-allowed amount that Medicare itself paid in 2020, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020.
30-day fills
4,351 standardized 30-day fills in 2021
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
$121,972 in 2021
The total cost of these prescriptions in 2021, 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 – by Provider and Drug, 2021.
Open Payments general payments, program year 2019
All general payments: $29.81 across 2 records.
By nature of payment
- Food and Beverage: $29.81 across 2 records.
Reporting-company totals
- Janssen Pharmaceuticals, Inc: $16.40 across 1 record.
- Novo Nordisk Inc: $13.41 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 2019 (published June 30, 2026).
NPI first issued
2006
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”
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, CMS release of October 2, 2026.
Compared with the same specialty in Troy and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Barriger are from 2020.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Barriger are from 2021.
113 active clinicians are listed under Internal Medicine with a practice address in Troy, MI (5,734 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Troy
38.9% of these 113 clinicians have the CMS telehealth indicator.
65.5% of these 113 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 B services
Medicare Part B services decreased 38% from 2,059 in 2017 to 1,282 in 2020.
- 2017: 2,059
- 2018: 1,509
- 2019: 1,436
- 2020: 1,282
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Medicare-allowed amount
Medicare-allowed amount decreased 42% from $112,218 in 2017 to $64,621 in 2020.
- 2017: $112,218
- 2018: $85,454
- 2019: $63,596
- 2020: $64,621
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Paid by Medicare
Paid by Medicare decreased 49% from $84,381 in 2017 to $43,032 in 2020.
- 2017: $84,381
- 2018: $65,713
- 2019: $40,510
- 2020: $43,032
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 75% from 7,047 in 2017 to 1,755 in 2021.
- 2017: 7,047
- 2018: 7,428
- 2019: 7,826
- 2020: 8,073
- 2021: 1,755
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30-day fills
30-day fills decreased 73% from 16,107 in 2017 to 4,351 in 2021.
- 2017: 16,107
- 2018: 16,687
- 2019: 17,688
- 2020: 18,091
- 2021: 4,351
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Part D drug cost
Part D drug cost decreased 66% from $358,135 in 2017 to $121,972 in 2021.
- 2017: $358,135
- 2018: $408,926
- 2019: $452,374
- 2020: $467,728
- 2021: $121,972
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2020), CMS Medicare Part D Prescribers (2021), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $29.81.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $16.40 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
— | General | $13.41 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2019 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2020; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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298 | 152 | $282.34 | $67.49 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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284 | 177 | $196.66 | $53.28 |
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36415
Insertion of needle into vein for collection of blood sample
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242 | 169 | $4.25 | $2.99 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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100 | 100 | $326.00 | $118.61 |
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G0008
Administration of influenza virus vaccine
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99 | 97 | $37.00 | $17.06 |
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90662
Influenza vaccine split virus, preservative free
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93 | 91 | $78.00 | $60.78 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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35 | 34 | $44.77 | $17.68 |
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99442
Telephone medical discussion with physician, 11-20 minutes
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34 | 32 | $56.00 | $55.57 |
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G0009
Administration of pneumococcal vaccine
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25 | 25 | $29.00 | $16.99 |
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99443
Telephone medical discussion with physician, 21-30 minutes
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24 | 20 | $82.00 | $81.61 |
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G2012
Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic
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23 | 22 | $30.00 | $14.03 |
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90732
Pneumococcal vaccine, 23-valent
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13 | 13 | $155.00 | $118.08 |
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90670
Pneumococcal vaccine, 13-valent
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12 | 12 | $265.00 | $225.19 |
Source: CMS Part B by Provider and Service, 2020; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 160 | 12,420 | $2,557.62 | 75 |
| Losartan Potassium | Losartan Potassium | 157 | 12,281 | $3,280.87 | 78 |
| Amlodipine Besylate | Amlodipine Besylate | 118 | 9,641 | $957.15 | 55 |
| Simvastatin | Simvastatin | 99 | 8,131 | $1,538.69 | 44 |
| Omeprazole | Omeprazole | 72 | 5,141 | $748.53 | 35 |
| Lisinopril | Lisinopril | 62 | 4,740 | $510.67 | 27 |
| Levothyroxine Sodium | Levothyroxine Sodium | 62 | 5,100 | $1,505.59 | 30 |
| Alprazolam | Alprazolam | 52 | 2,011 | $456.11 | 33 |
| Chlorthalidone | Chlorthalidone | 51 | 3,930 | $2,057.84 | 28 |
| Metformin Hcl | Metformin Hcl | 49 | 4,115 | $744.55 | 27 |
| Furosemide | Furosemide | 44 | 3,240 | $220.70 | 18 |
| Hydrochlorothiazide | Hydrochlorothiazide | 44 | 3,420 | $259.93 | 18 |
| Potassium Chloride | Potassium Chloride | 43 | 3,330 | $1,196.62 | 21 |
| Irbesartan | Irbesartan | 43 | 3,330 | $1,703.26 | 20 |
| Sertraline Hcl | Sertraline Hcl | 40 | 2,460 | $452.87 | 19 |
| Carvedilol | Carvedilol | 40 | 2,041 | $312.21 | 11 |
| Eliquis | Apixaban | 38 | 2,400 | $40,400.47 | 16 |
| Metformin Hcl Er | Metformin Hcl | 37 | 2,850 | $537.71 | 20 |
| Metoprolol Succinate | Metoprolol Succinate | 35 | 3,150 | $1,107.31 | 23 |
| Tamsulosin Hcl | Tamsulosin Hcl | 32 | 2,287 | $711.92 | 17 |
| Gabapentin | Gabapentin | 28 | 1,440 | $431.41 | 16 |
| Clopidogrel | Clopidogrel Bisulfate | 24 | 2,040 | $450.52 | — |
| Labetalol Hcl | Labetalol Hcl | 24 | 2,028 | $882.04 | — |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 23 | 2,070 | $789.49 | 13 |
| Metoprolol Tartrate | Metoprolol Tartrate | 21 | 1,890 | $239.39 | 14 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-10-23NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 26901 BEAUMONT BLVD STE 3D, SOUTHFIELD, MI 480333849
NPI status registered as active in NPPES database
Registered at 38865 DEQUINDRE RD, SUITE 106, TROY, MI 480836812 (Tel: 2487202626)
Registered at 38865 DEQUINDRE RD, SUITE 106, TROY, MI 480836812 (Tel: 2487202626)
Recorded as THOMAS BARRIGER, MD
Internal Medicine (license number reported to NPPES: MI 4301042604)
NPI status registered as active in NPPES database
Registered at 38865 DEQUINDRE RD, SUITE 106, TROY, MI 480836812 (Tel: 2487202626)
Registered at 38865 DEQUINDRE RD, SUITE 106, TROY, MI 480836812 (Tel: 2487202626)
Recorded as THOMAS BARRIGER, MD
Internal Medicine (license number reported to NPPES: MI 4301042604)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Troy
- Dr. Andrew Nathanson, DO
- Dr. Alan Bunney, MD
- Dr. Mark Scapini, MD
- Dr. Ammar Khanshour, MD
- Dr. Michelle Biddinger, MD
- Dr. Russell Hug, MD
Mailing Address
26901 Beaumont Blvd Ste 3d
Southfield, MI 480333849