Robert M. Oberstein, MD, FACE
Endocrinology, Diabetes & Metabolism Physician · Hartford, CT
Robert M. Oberstein, MD, FACE is an endocrinology, diabetes & metabolism physician with a practice address in Hartford, Connecticut, and NPI 1568404267, issued on Jun 10, 2006. Check the license (Connecticut 038714, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Robert M. Oberstein
- Credential
- MD, FACE
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 038714 CT
Self-reported in NPPES; status is on the state search - Practice location
- 100 Retreat Ave, Hartford, CT 06106
- Phone
- (860) 547-1278
- Enumerated
- Jun 10, 2006
- Record last updated
- Feb 6, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (860) 547-1301
- Medicaid ID
- 001387142 CT
- Medicare enrollment
- Enrolled (PECOS I20050418001296); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 1994
- 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 100 Retreat Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristina Amato, APRNNurse Practitioner1750699369
- Thomas Banever, M.D.Surgery Physician1992799498
- Karen Beattie, APRNObstetrics & Gynecology Nurse Practitioner1659474690
- Steven Borer, D.O.Cardiovascular Disease Physician1528210119
- Daniel Borrus, M.D.Internal Medicine Physician1306023247
- Barbara Brigandi, APRNAdult Health Nurse Practitioner1942300553
Verify Robert M. Oberstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 038714Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024
7,556 Medicare Part D claims for 853 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Mounjaro986 claims
- Synthroid846 claims
- Levothyroxine Sodium697 claims
- Unithroid372 claims
- Ozempic288 claims
- Jardiance272 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.
Industry payments in 2024: $75,418.61
241 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Starling Physicians, PLLCNew Britain, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert M. Oberstein among 214 endocrinology, diabetes & metabolism physician records in Connecticut
Robert M. Oberstein, MD, FACE 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 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1994 · median 2004 among the 145 with a school on file
- Record last updated2012 · 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).
Endocrinology, Diabetes & Metabolism Physician providers in Connecticut
There are 214 endocrinology, diabetes & metabolism physician records in Connecticut.
All 214 in Connecticut → Every provider in Hartford → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Ipek Alpertunga, MDHartford, CT 061061386166452
- Racha Dermesropian, MDHartford, CT 061061043484264
- Kaye-Anne Newton, MDHartford, CT 061061659521094
- Deepti Rawal, MBBSHartford, CT 061061821239138
- Kiran Ubriani, M.D.Hartford, CT 061061467409714
- Kareen Champagne, MDHartford, CT 061051255828372
- Emmanuel Javier, MDHartford, CT 061051740283779
- Marshall Lassman, MDHartford, CT 061051629040357
Common questions
What is Robert M. Oberstein, MD, FACE's NPI number?
Robert M. Oberstein, MD, FACE's National Provider Identifier (NPI) is 1568404267, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert M. Oberstein, MD, FACE located?
The NPPES record lists a practice address at 100 Retreat Ave, Hartford, CT, 06106. Phone: (860) 547-1278. Providers update this record themselves, so call before visiting.
How can I verify Robert M. Oberstein, MD, FACE's license?
NPPES lists Connecticut license number 038714, 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 Robert M. Oberstein, MD, FACE prescribe under Medicare Part D?
In 2024, Robert M. Oberstein, MD, FACE had 7,556 Medicare Part D claims for 853 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.