Gary A. Tennison, DO
Family Medicine Physician · Robinson, IL
Gary A. Tennison, DO is a family medicine physician with a practice address in Robinson, Illinois, and NPI 1518946813, issued on Jan 13, 2006. Check the license (Illinois 036099492, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gary A. Tennison
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036099492 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1101 N Allen St, Robinson, IL 62454
- Phone
- (618) 544-3125
- Enumerated
- Jan 13, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (618) 546-5185
- Medicare enrollment
- Enrolled (PECOS I20060222000742); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 1996
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1101 N Allen St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Adams, APRNFamily Nurse Practitioner1376149542
- Eleanor Atienza-Tennison, DOFamily Medicine Physician1255310546
- Vickie Becker, MDInternal Medicine Physician1396775433
- Jenna Kintner, NPFamily Nurse Practitioner1316345598
- Jamie Knoblett, NP-CFamily Nurse Practitioner1942678404
- Katie Parker, APRN, FNP-CFamily Nurse Practitioner1467086892
Verify Gary A. Tennison in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036099492Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.5 times the Medicare Part D claims of the average family medicine physician in 2024
19,437 Medicare Part D claims for 915 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 304 claims were for opioids.
Most prescribed
- Atorvastatin Calcium799 claims
- Amlodipine Besylate794 claims
- Lisinopril606 claims
- Levothyroxine Sodium593 claims
- Hydrochlorothiazide572 claims
- Losartan Potassium562 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 95 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $196.93
12 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Crawford Hospital DistrictRobinson, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary A. Tennison among 6,215 family medicine physician records in Illinois
Gary A. Tennison, DO is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1996 · median 2006 among the 3,714 with a school on file
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 family medicine physician records list a practice address in Robinson
They are 6 of the 145 NPPES records with a practice address in Robinson, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Robinson → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eleanor Atienza-Tennison, DORobinson, IL 624541255310546
- Michael ElliottRobinson, IL 624541548267693
- Michael Phillippe, MDRobinson, IL 624541477537744
- Brianne Rehg, DORobinson, IL 624541376170977
- David Rotman, M.D.Robinson, IL 624541730204405
- Brian Atwood, M.D.Olney, IL 624501235182809
- Paige Clayton, MDOlney, IL 624501942792726
- Josette Jovero-ClodfelterOlney, IL 624501659857886
Common questions
What is Gary A. Tennison, DO's NPI number?
Gary A. Tennison, DO's National Provider Identifier (NPI) is 1518946813, issued on Jan 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary A. Tennison, DO located?
The NPPES record lists a practice address at 1101 N Allen St, Robinson, IL, 62454. Phone: (618) 544-3125. Providers update this record themselves, so call before visiting.
How can I verify Gary A. Tennison, DO's license?
NPPES lists Illinois license number 036099492, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gary A. Tennison, DO prescribe under Medicare Part D?
In 2024, Gary A. Tennison, DO had 19,437 Medicare Part D claims for 915 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Gary A. Tennison, DO's MIPS final score?
The 2023 MIPS final score is 95 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.