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Edit this profileAt a glance
- 100 Retreat Ave, Suite 400, Hartford, CT 06106
About Dr. Oberstein
Robert M. Oberstein, MD, FACE practices endocrinology in Hartford, CT. Robert is a 1994 graduate of Icahn School of Medicine at Mount Sinai. Robert is also listed as specializing in endocrinology, diabetes & metabolism. Medicare claims data shows Robert provided 8,521 services to 1,012 patients. The services billed most often include injection, denosumab, 1 mg, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient'. The provider's National Provider Identifier (NPI) is 1568404267.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (860) 547-1278
- Email not available
Practice Locations
100 RETREAT AVE SUITE 400
Hartford, CT 06106
Conditions Commonly Evaluated or Treated
Within Endocrinology, Diabetes and Metabolism generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Adrenal
Adrenal disorders
Blood sugar disorders
Bone and calcium disorders
Bones
Diabetes
Endocrine tumors
Hormone disorders
- Early or delayed puberty
- Excess facial or body hair
- Gynecomastia
- Perimenopause
- Testosterone deficiency
Hormones
Metabolic disorders
Metabolism
Parathyroid
Pituitary
Pituitary disorders
Thyroid
Thyroid disorders
Procedures & services
Most searched procedures
Adrenal
Adrenal evaluations
Blood sugar management
Bone evaluations
Bone treatments
Diabetes
- Automated Insulin System Setup
- Blood Ketone Monitoring
- C-Peptide Test
- Continuous Glucose Monitor Data Review
- Medical nutrition therapy
- Starting Insulin Therapy
Diabetes education
Diabetes preventive care
Genetic evaluations
Hormone treatments
- Estrogen and Progesterone Therapy
- Growth Hormone Injections
- Hormone Replacement Therapy Consultation
Hormones
Metabolic evaluations
Metabolism
Parathyroid
Pituitary
Pituitary evaluations
Thyroid
Thyroid procedures
- Radioactive Iodine Treatment
- Thyroid Antibody Testing
- Thyroid Blood Test
- Thyroid Medication Adjustment
- Thyroid Nodule Biopsy
- Thyroid Nodule Radiofrequency Ablation
Weight & Metabolism
Procedures Most Often Billed to Medicare
8,521 services · 1,012 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | Treatment | 95251 |
241 | More often than most peers in Endocrinology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
121 | More often than most peers in Endocrinology |
| Injection, denosumab, 1 mg | Drug given | J0897 |
6,900 | More often than most peers in Endocrinology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
492 | More often than most peers in Endocrinology |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
467 | More often than most peers in Endocrinology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
236 | More than most peers in Endocrinology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
29 | As often as other peers in Endocrinology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
23 | Less often than most peers in Endocrinology |
| Hemoglobin a1c level | Lab test | 83036 |
12 | Less often than most peers in Endocrinology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other endocrinology specialists in Hartford 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Icahn School of Medicine at Mount Sinai 8
Other providers in the same specialty who trained at the same institution.
Class of 1994 at Icahn School of Medicine at Mount Sinai 8
Providers who graduated from the same medical school in the same year.
Also performs Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 8
Providers in CT who bill this service to Medicare most often.
Common questions
What does Dr. Oberstein specialize in?
Dr. Oberstein is an endocrinology in Hartford, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Oberstein located?
Dr. Oberstein is listed at 100 Retreat Ave Suite 400, Hartford, CT 06106. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Oberstein's phone number?
The number on file is (860) 547-1278. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Oberstein?
Dr. Oberstein's National Provider Identifier is 1568404267. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Oberstein go to medical school?
Dr. Oberstein attended Icahn School of Medicine at Mount Sinai, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Oberstein have?
Dr. Oberstein has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Oberstein do most often?
According to Medicare billing data, Dr. Oberstein provides treatments such as continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Oberstein's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Oberstein. If this is you, claiming it is free.
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