Delia Mihaela Stefan, MD
Endocrinology, Diabetes & Metabolism Physician · Fishkill, NY
Delia Mihaela Stefan, MD is an endocrinology, diabetes & metabolism physician with a practice address in Fishkill, New York, and NPI 1003019613, issued on Jun 10, 2007. Check the license (New York 257202, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Delia Mihaela Stefan
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 257202 NY
Self-reported in NPPES; status is on the state search - Practice location
- 600 Westage Business Ctr Dr, Fishkill, NY 12524
- Phone
- (845) 231-5600
- Enumerated
- Jun 10, 2007
- Record last updated
- Jan 16, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (845) 231-5489
- Medicaid ID
- 03292248 NY
- Medicare enrollment
- Enrolled (PECOS I20110105000024); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 970 in New York → Look up another NPI →
Also registered at 600 Westage Business Ctr Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rupinder Bhangoo, MDObstetrics & Gynecology Physician1003084302
- Arlene Birnbaum, PTPhysical Therapist1255604443
- Ruth Blash, MDInternal Medicine Physician1295849545
- Caroline Cadmus, PA-CSurgical Physician Assistant1326270067
Verify Delia Mihaela Stefan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 257202Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,658 Medicare Part D claims for 414 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Mounjaro358 claims
- Metformin Hcl Er285 claims
- Jardiance252 claims
- Levothyroxine Sodium250 claims
- Synthroid180 claims
- Ozempic177 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): 91.3 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).
Bills Medicare through one group practice
- North Shore-Lij Medical PCSleepy Hollow, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Delia Mihaela Stefan among 970 endocrinology, diabetes & metabolism physician records in New York
Delia Mihaela Stefan, MD is one of 970 endocrinology, diabetes & metabolism physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 49% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2001 · median 2004 among the 694 with a school on file
- Record last updated2015 · 59% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in New York
There are 970 endocrinology, diabetes & metabolism physician records in New York.
All 970 in New York → Every provider in Fishkill → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Chithranjan Nath, MDFishkill, NY 125241053456855
- Laila Noor, MDFishkill, NY 125241043709884
- Melissa Price, MDFishkill, NY 125241669678736
- Meryl Reichman, MDFishkill, NY 125241730296328
- Diane Zlotnikov-Smolyare, M.D.Dover Plains, NY 125221376773630
- Robert Ortiz, M.D.Highland, NY 125281255384418
- Jonathan Castro, MDCornwall, NY 125181093709479
- Rehan Ahmad, D.O.Newburgh, NY 125501215959457
Common questions
What is Delia Mihaela Stefan, MD's NPI number?
Delia Mihaela Stefan, MD's National Provider Identifier (NPI) is 1003019613, issued on Jun 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Delia Mihaela Stefan, MD located?
The NPPES record lists a practice address at 600 Westage Business Ctr Dr, Fishkill, NY, 12524. Phone: (845) 231-5600. Providers update this record themselves, so call before visiting.
How can I verify Delia Mihaela Stefan, MD's license?
NPPES lists New York license number 257202, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Delia Mihaela Stefan, MD prescribe under Medicare Part D?
In 2024, Delia Mihaela Stefan, MD had 3,658 Medicare Part D claims for 414 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Delia Mihaela Stefan, MD's MIPS final score?
The 2023 MIPS final score is 91.3 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.