Shayan Ozhen Riahi, DO
Endocrinology, Diabetes & Metabolism Physician · Prospect, CT
Shayan Ozhen Riahi, DO is an endocrinology, diabetes & metabolism physician with a practice address in Prospect, Connecticut, and NPI 1467012278, issued on Jun 14, 2019. Check the license (Connecticut 77358, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Shayan Ozhen Riahi
- Credential
- DO
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 77358 CT
OT019355 PA
Self-reported in NPPES; status is on the state search - Practice location
- 166 Waterbury RD, Prospect, CT 06712
- Phone
- (203) 755-7711
- Enumerated
- Jun 14, 2019
- Record last updated
- Aug 9, 2024
- Fax
- (203) 755-8996
- Medicare enrollment
- Enrolled (PECOS I20240612003876); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 214 in Connecticut → Look up another NPI →
Also registered at 166 Waterbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carlos Almeida, MDInternal Medicine Physician1588633036
- Alexander Alvarez, M.D.Internal Medicine Physician1447219571
- Jenny Amos-AffulFamily Nurse Practitioner1063358083
- Michael D'Aquila, PTPhysical Therapist1811999568
- Patrick Duffy, M.D.Orthopaedic Surgery Physician1912905621
- Terri Dvorkin, APRNNurse Practitioner1659340198
Verify Shayan Ozhen Riahi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 77358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
483 Medicare Part D claims for 114 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Levothyroxine Sodium47 claims
- Mounjaro35 claims
- Alendronate Sodium34 claims
- Atorvastatin Calcium25 claims
- Lantus Solostar20 claims
- Ozempic18 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
- Trinity Health OF New England Provider Network Organization IncWaterbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shayan Ozhen Riahi among 214 endocrinology, diabetes & metabolism physician records in Connecticut
Shayan Ozhen Riahi, DO is one of 214 endocrinology, diabetes & metabolism physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 94% of them.
- NPI issued2019 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2019 · median 2004 among the 145 with a school on file
- Record last updated2024 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 endocrinology, diabetes & metabolism physician records list a practice address in Prospect
They are 2 of the 125 NPPES records with a practice address in Prospect, and 214 endocrinology, diabetes & metabolism physician records in Connecticut.
All 214 in Connecticut → Every provider in Prospect → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Robert LabeckProspect, CT 067121720949738
- Juan Fica, M.D.Waterbury, CT 067081023085065
- Anna Freitag, M.D.Waterbury, CT 067061235113507
- Beatriz Olson, MDMiddlebury, CT 067621871543009
- Egils Bogdanovics, M.D.Torrington, CT 067901619065976
- Umar Ahmad, D.O.Danbury, CT 068101336589746
- Kristen Jackson, MDDanbury, CT 068101255727558
- Marcos Lamas, M.D.Danbury, CT 068101154618700
Common questions
What is Shayan Ozhen Riahi, DO's NPI number?
Shayan Ozhen Riahi, DO's National Provider Identifier (NPI) is 1467012278, issued on Jun 14, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Shayan Ozhen Riahi, DO located?
The NPPES record lists a practice address at 166 Waterbury RD, Prospect, CT, 06712. Phone: (203) 755-7711. Providers update this record themselves, so call before visiting.
How can I verify Shayan Ozhen Riahi, DO's license?
NPPES lists Connecticut license number 77358, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Shayan Ozhen Riahi, DO prescribe under Medicare Part D?
In 2024, Shayan Ozhen Riahi, DO had 483 Medicare Part D claims for 114 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.