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Edit this profileAt a glance
- 75 Holly Hill Ln, Greenwich, CT 06830
About Dr. Ostroff
Allison M. Ostroff, M.D. is a healthcare provider in Greenwich, CT specializing in internal medicine. Allison trained at Albert Einstein College of Medicine of Yeshiva University, graduating in 2005. Allison is also listed as specializing in geriatric medicine. Medicare claims data shows Allison provided 684 services to 380 patients. The services billed most often include subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, and initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes. This provider record is associated with NPI 1720262397.
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
- (203) 869-6960
- Email not available
Practice Locations
75 HOLLY HILL LN
Greenwich, CT 06830
Conditions Commonly Evaluated or Treated
Within Internal Medicine 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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
- Anemia
Brain & Nerves
Brain and nerves
Cardiac and vascular
- AFib
Digestive
Heart & Circulation
- Heart disease
Infections
- Impetigo
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
- EKG
- Spirometry
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
- Pre-Op Clearance Exam
Heart & Circulation
- Blood Pressure Check
- Heart monitor
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
- Ingrown toenail removal
- Suture removal
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
- Smoking cessation counseling
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
684 services · 380 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
225 | More often than most peers in Internal Medicine |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
195 | As often as other peers in Internal Medicine |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
44 | As often as other peers in Internal Medicine |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
41 | As often as other peers in Internal Medicine |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
41 | More often than most peers in Internal Medicine |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
38 | As often as other peers in Internal Medicine |
| Nursing facility discharge management, more than 30 minutes | Office visit | 99316 |
37 | As often as other peers in Internal Medicine |
| Advance care planning, first 30 minutes | Office visit | 99497 |
24 | Less often than most peers in Internal Medicine |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
13 | Less often than most peers in Internal Medicine |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
13 | Less often than most peers in Internal Medicine |
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.
Other internists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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.
More connections — 22 related providers in 3 groups
Other internists in Greenwich 6
Same specialty, same city.
Trained at Albert Einstein College of Medicine of Yeshiva University 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Albert Einstein College of Medicine of Yeshiva University 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Allison M. Ostroff's specialty?
Allison M. Ostroff is an internist in Greenwich, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Allison M. Ostroff?
Allison M. Ostroff is listed at 75 Holly Hill Ln, Greenwich, CT 06830. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Allison M. Ostroff?
The number on file is (203) 869-6960. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Allison M. Ostroff?
Allison M. Ostroff's National Provider Identifier is 1720262397. 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
What is Allison M. Ostroff's education?
Allison M. Ostroff attended Albert Einstein College of Medicine of Yeshiva University, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Allison M. Ostroff have?
Allison M. Ostroff has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is Allison M. Ostroff known for?
According to Medicare billing data, Allison M. Ostroff the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Allison M. Ostroff's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Allison M. Ostroff. If this is you, claiming it is free.
Guide.md
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