Dr. Jason L. Greenbaum, MD
- Medicare services, 2024
- 198
- Medicare patients, 2024
- 186
- Part D claims, 2024
- 172
- Hospital affiliations
- 4
- Industry payments
- $94
- Practice address
- 100 Grand Street, New Britain, CT 06050
- Practice phone
- Call (860) 224-5011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Greenbaum's professional email, personal email and mobile number
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Dr. Jason L. Greenbaum is an emergency medicine physician in New Britain, Connecticut
Dr. Greenbaum practices at The Hospital of Central Connecticut in New Britain, Connecticut, part of Hartford HealthCare.
Dr. Greenbaum's NPI, 1649205493, was assigned on July 11, 2006. Dr. Greenbaum holds Connecticut license 44305.
- NPI
- 1649205493NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517963390
- NPI enumeration date
- July 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 224-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jason L. Greenbaum practices at The Hospital of Central Connecticut in New Britain, Connecticut
Dr. Greenbaum's primary practice is The Hospital of Central Connecticut, at 100 Grand Street, New Britain, CT 06050 in Hartford County. The practice phone is (860) 224-5011.
- The Hospital of Central Connecticut100 Grand Street, New Britain, CT 06050 · Hartford CountyPhone(860) 224-5011
Source: Dmand AI Affiliation Data
Dr. Jason L. Greenbaum is affiliated with 6 sites of care and 10 medical groups
Dr. Greenbaum's primary practice is The Hospital of Central Connecticut in New Britain, Connecticut, part of Hartford HealthCare. Dr. Greenbaum is also affiliated with Manchester Memorial Hospital. The medical group on file is The Hospital of Central Connecticut. Dmand AI also links Dr. Greenbaum to 2 more hospitals, 9 medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jason L. Greenbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenbaum practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Hospital of Central Connecticut | Available with a free account |
| +5 more sites and 9 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jason L. Greenbaum is one of 683 emergency medicine physicians in Connecticut
Emergency medicine is Dr. Greenbaum's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Greenbaum's licenses on file in 2 states: Connecticut and Michigan.
Specialties and state licenses
- Emergency medicine, ConnecticutPrimary
- Michigan license
Emergency medicine physicians near Dr. Greenbaum
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jason L. Greenbaum billed Medicare for 198 services in 2024
CMS data shows 198 Medicare services from Dr. Greenbaum across 5 procedure codes in 2024, for 186 Medicare patients. Medicare paid $21,234 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Greenbaum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1622024: 18715%
- Tests and treatments
- 2023: 182024: 1139%
Dr. Greenbaum compared with the Connecticut median for emergency medicine physicians, 2024
- Dr. Greenbaum
- Connecticut median
- Medicare services
- 198vs 24319% below
- Medicare patients
- 186vs 25026% below
- Part D claims
- 77vs 4860% above
Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.
Dr. Greenbaum's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jason L. Greenbaum treated 186 Medicare patients in 2024, average age 72
CMS counts 186 Medicare patients who saw Dr. Greenbaum in 2024. The largest group is 75 to 84, with 56 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 48% are also on Medicaid. Their average risk score is 2.21, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Greenbaum's median patient age at 46, with 59% women.
Dr. Greenbaum's Medicare patients by age, 2024
Dr. Greenbaum's Medicare patients by sex, 2024
- Women10858%
- Men7842%
Chronic conditions among Dr. Greenbaum's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Anxiety52%
- Arthritis52%
- Mood disorders51%
- Ischemic heart disease45%
- Depression43%
- Diabetes41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greenbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women59%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jason L. Greenbaum wrote 172 Medicare Part D claims in 2024
In 2024, Dr. Greenbaum wrote 172 Medicare Part D claims for 126 patients. 94% of them were for generic drugs. CMS names the drug for 77 of them, across 4 drugs with 11 or more claims each, at $390 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Greenbaum's Part D claims by kind of drug, 2024
- Generic162 claims94%
- Brand-name and other10 claims6%
Dr. Greenbaum's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Greenbaum's Part D claims, 2024
- Opioids14%24 of 172 claims
- Antibiotics28%48 of 172 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 122024: 77542%
Drugs named by CMS: 4 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jason L. Greenbaum takes part in Medicare
Dr. Greenbaum accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jason L. Greenbaum received $94 in industry payments from 2017 to 2024
CMS Open Payments shows 5 general payments to Dr. Greenbaum from 2 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $53.
General payments to Dr. Greenbaum by program year, 2017 to 2024
Companies that paid Dr. Greenbaum the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jason L. Greenbaum's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jason L. Greenbaum
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jason L. Greenbaum's NPI number?
Dr. Jason L. Greenbaum's NPI number is 1649205493. It was assigned on July 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jason L. Greenbaum?
Dr. Jason L. Greenbaum is an emergency medicine physician in New Britain, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jason L. Greenbaum practice?
Dr. Greenbaum practices at 100 Grand Street, New Britain, CT 06050. Dr. Greenbaum's primary practice is The Hospital of Central Connecticut in New Britain, Connecticut, part of Hartford HealthCare. Dmand AI also links Dr. Greenbaum to 2 hospitals, 9 medical groups and 2 group practices and clinics.
What is Dr. Jason L. Greenbaum's office phone number?
The practice phone on file for Dr. Greenbaum is (860) 224-5011.
What is Dr. Jason L. Greenbaum's medical license number?
Dr. Greenbaum holds Connecticut license 44305, one of the licenses on file in 2 states.
Which states has Dr. Jason L. Greenbaum been licensed in?
Dmand AI has state licenses on file for Dr. Greenbaum in Connecticut and Michigan.
Which hospitals is Dr. Jason L. Greenbaum affiliated with?
Dr. Greenbaum practices at The Hospital of Central Connecticut in New Britain, Connecticut. Dr. Greenbaum is also affiliated with Manchester Memorial Hospital. Dmand AI links Dr. Greenbaum to 2 more hospitals.
What medical group is Dr. Jason L. Greenbaum part of?
Dr. Greenbaum is linked to The Hospital of Central Connecticut. Dmand AI links Dr. Greenbaum to 9 more medical groups.
Does Dr. Jason L. Greenbaum accept Medicare?
Yes. CMS data shows Dr. Greenbaum billed Medicare for 198 services in 2024, and Dr. Greenbaum accepts Medicare assignment.
How many Medicare patients does Dr. Jason L. Greenbaum see?
CMS counts 186 Medicare patients who saw Dr. Greenbaum in 2024, with an average age of 72.
Show 4 more questionsShow fewer questions
What services does Dr. Jason L. Greenbaum bill to Medicare?
In 2024, Dr. Greenbaum's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
What drugs does Dr. Jason L. Greenbaum prescribe most?
In 2024 Medicare Part D data, Dr. Greenbaum's most prescribed drugs by claims were Ondansetron ODT, Oxycodone HCl and Cephalexin.
Has Dr. Jason L. Greenbaum received payments from drug or device companies?
CMS Open Payments shows $94 in general payments to Dr. Greenbaum from 2 companies from 2017 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Jason L. Greenbaum been practicing?
Dr. Greenbaum graduated from medical school in 2002, 24 years ago.
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