Michael T. Poshkus, MD
Infectious Disease Physician · West Warwick, RI
Michael T. Poshkus, MD is an infectious disease physician with a practice address in West Warwick, Rhode Island, and NPI 1952341075, issued on Jun 7, 2006. Check the license (Rhode Island MD11272, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Michael T. Poshkus
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- MD11272 RI
Self-reported in NPPES; status is on the state search - Practice location
- 186 Providence St, West Warwick, RI 02893
- Phone
- (401) 615-2800
- Enumerated
- Jun 7, 2006
- Record last updated
- Oct 8, 2025
- Fax
- (401) 615-2805
- Medicaid ID
- 9003199 RI
- Medicare enrollment
- Enrolled (PECOS I20040219000952); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1998
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 66 in Rhode Island → Look up another NPI →
Also registered at 186 Providence St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ivonne Abad BeltranFamily Nurse Practitioner1174455828
- Kimberly Ainsworth, FNPFamily Nurse Practitioner1508492208
- Kelly Albro, FNP-BCNurse Practitioner1053033191
- Lexsey Almeida, LMHCMental Health Counselor1427614502
- Ashlee Austin, LICSWClinical Social Worker1568183739
- Eric Bai, MDInternal Medicine Physician1376292938
Verify Michael T. Poshkus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD11272Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.4 times the Medicare Part D claims of the average infectious disease physician in 2024
4,419 Medicare Part D claims for 174 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 275 claims were for opioids.
Most prescribed
- Atorvastatin Calcium255 claims
- Buprenorphine-Naloxone245 claims
- Gabapentin211 claims
- Albuterol Sulfate Hfa198 claims
- Lisinopril162 claims
- Omeprazole145 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.
Bills Medicare through one group practice
- Thundermist Health CenterWest Warwick, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael T. Poshkus among 66 infectious disease physician records in Rhode Island
Michael T. Poshkus, MD is one of 66 infectious disease physician records with a practice address in Rhode Island. 77% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 52% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1998 · median 2004 among the 45 with a school on file
- Record last updated2025 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Rhode Island
There are 66 infectious disease physician records in Rhode Island.
All 66 in Rhode Island → Every provider in West Warwick → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Sapna Chowdhry, MDWoonsocket, RI 028951902843311
- David Lowe, MDWarwick, RI 028861831207752
- Thomas O'Brien, M.D.Warwick, RI 028861801246491
- Diana Villanueva Donmez, MDWarwick, RI 028861801356332
- Hadeel Zainah, M.D.Warwick, RI 028861457515603
- Angela Caliendo, M.D., PH.D.Providence, RI 029031063470995
- Eirini Christaki, M.D.Providence, RI 029031972706331
- Dimitrios Farmakiotis, M.D.Providence, RI 029031255625919
Common questions
What is Michael T. Poshkus, MD's NPI number?
Michael T. Poshkus, MD's National Provider Identifier (NPI) is 1952341075, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael T. Poshkus, MD located?
The NPPES record lists a practice address at 186 Providence St, West Warwick, RI, 02893. Phone: (401) 615-2800. Providers update this record themselves, so call before visiting.
How can I verify Michael T. Poshkus, MD's license?
NPPES lists Rhode Island license number MD11272, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael T. Poshkus, MD prescribe under Medicare Part D?
In 2024, Michael T. Poshkus, MD had 4,419 Medicare Part D claims for 174 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
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.