Curr Opin Psychiatry
Antipsychotic AgentsComorbidityDeath, Sudden, Cardiac
Dr. Aaron P. Greenstein, MD
NPI1154856425
- Part D claims, 2024
- 669
- Publications
- 2
- Industry payments
- $1,407
- Insurance carriers
- 4
- State licenses
- 5
- Practice address
- 401 Highland Ave, Somerville, MA 02144
- Practice phone
- Call (303) 642-6072
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Greenstein's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Aaron P. Greenstein is a geriatric psychiatry physician in Somerville, Massachusetts
Dr. Greenstein practices in Somerville, Massachusetts.
Dr. Greenstein's NPI, 1154856425, was assigned on April 25, 2017. Dr. Greenstein graduated from New York Medical College in 2017. Dr. Greenstein holds Colorado license 0069594.
NPI and contact details
- NPI
- 1154856425NPI Registry (opens in a new tab)
- NPI enumeration date
- April 25, 2017
- NPI status
- Active
- Practice phone
- (303) 642-6072
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Aaron P. Greenstein's practice address is in Somerville, Massachusetts
Dr. Greenstein's practice address in the NPI Registry is 401 Highland Ave, Somerville, MA 02144, in Middlesex County. The practice phone is (303) 642-6072.
- NPI Registry address401 Highland Ave, Somerville, MA 02144 · Middlesex CountyPhone(303) 642-6072
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Aaron P. Greenstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenstein practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Greenstein's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Aaron P. Greenstein is one of 29 geriatric psychiatry physicians in Massachusetts
Geriatric psychiatry is Dr. Greenstein's primary specialty in the NPI Registry, under taxonomy code 2084P0805X. Dr. Greenstein is board certified in geriatric psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Greenstein's licenses on file in 5 states: Colorado, Illinois, Massachusetts, Washington and Nevada.
Specialties and state licenses
- Geriatric psychiatry, ColoradoPrimary
- Illinois license
- Massachusetts license
- Washington license
- Nevada license
Geriatric psychiatry physicians near Dr. Greenstein
Counts of geriatric psychiatry 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. Aaron P. Greenstein's patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Greenstein's median patient age at 79, with 43% women.
Dr. Greenstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Aaron P. Greenstein wrote 669 Medicare Part D claims in 2024
In 2024, Dr. Greenstein wrote 669 Medicare Part D claims for 70 patients. 97% of them were for generic drugs. CMS names the drug for 506 of them, across 15 drugs with 11 or more claims each, at $13,521 in total drug cost. In 2023, CMS named 212 claims across 12 drugs.
Part D claims, 2024669
Drugs named by CMS15
Total drug cost$13,521
Part D patients70
Dr. Greenstein's Part D claims by kind of drug, 2024
- Generic651 claims97%
- Brand-name18 claims3%
Dr. Greenstein'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. Greenstein's Part D claims, 2024
- Antipsychotics, patients 65 and over28%186 of 669 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: 2122024: 506139%
Drugs named by CMS: 15 in 2024, 12 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
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Dr. Aaron P. Greenstein has 2 publications on record
Dmand AI links 2 papers to Dr. Greenstein. Dr. Greenstein's most frequent co-authors are Kevin Jaijin Li, MD and Haley Volk Solomon, DO.
Papers2
Dr. Greenstein's most frequent co-authors
- Kevin Jaijin Li, MD1 shared paper
- Haley Volk Solomon, DO1 shared paper
Recent publications by Dr. Greenstein
Harv Rev Psychiatry
BrainCannabinoidsCannabis
See who Dr. Greenstein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greenstein works with, so you can find a warm path to the right geriatric psychiatry physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Aaron P. Greenstein received $1,407 in industry payments from 2023 to 2025
CMS Open Payments shows 12 general payments to Dr. Greenstein from 8 drug and device companies from 2023 to 2025. Honoraria make up the largest share, 58% of the total. Lundbeck LLC paid the most, $842.
General payments to Dr. Greenstein by program year, 2023 to 2025
General payments to Dr. Greenstein by kind, 2023 to 2025
$1.4Kin total
- Honoraria$82058%
- Food and beverage$58742%
Companies that paid Dr. Greenstein the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Aaron P. Greenstein has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Greenstein, most recently Livingston Fellowship Award in 2021.
Awards and honors for Dr. Greenstein
- 2021
- Livingston Fellowship Award
- 2020
- Honors Scholar
- 2008
- Simon Rockower Award for Excellence in Feature Writing , 2nd place
- Undated
- Health and Aging Policy Fellowship
Dr. Greenstein's committees and leadership roles
- Massachusetts Psychiatric Society Geriatric CommitteeCo-Chair
- 2018 to 2020
Source: Dmand AI Professional Profile Data
Dr. Aaron P. Greenstein graduated from New York Medical College
Dr. Greenstein graduated from New York Medical College in 2017. Dr. Greenstein is a member of American Association for Geriatric Psychiatry, AMA, APA and Massachusetts Psychaitric Society.
- Medical school
- Board certified in geriatric psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Aaron P. Greenstein accepts plans from 4 insurance carriers
Dr. Greenstein is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and DentaQuest. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- DentaQuest
- RI State Medicaid
Plan types Dr. Greenstein accepts, by number of carriers
- HMO2
- POS2
- PPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Aaron P. Greenstein'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Aaron P. Greenstein
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. Aaron P. Greenstein's NPI number?
Dr. Aaron P. Greenstein's NPI number is 1154856425. It was assigned on April 25, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron P. Greenstein?
Dr. Aaron P. Greenstein is a geriatric psychiatry physician in Somerville, Massachusetts. The primary specialty in the NPI Registry is Geriatric Psychiatry Physician (taxonomy code 2084P0805X).
Where does Dr. Aaron P. Greenstein practice?
Dr. Greenstein practices at 401 Highland Ave, Somerville, MA 02144.
What is Dr. Aaron P. Greenstein's office phone number?
The practice phone on file for Dr. Greenstein is (303) 642-6072.
What is Dr. Aaron P. Greenstein's medical license number?
Dr. Greenstein holds Colorado license 0069594, one of the licenses on file in 5 states.
Which states has Dr. Aaron P. Greenstein been licensed in?
Dmand AI has state licenses on file for Dr. Greenstein in Colorado (2022 to 2027), Illinois (2024 to 2026), Massachusetts (2017 to 2026), Washington (2022 to 2023) and Nevada (2017).
Is Dr. Aaron P. Greenstein board certified?
Yes. Dr. Greenstein is board certified in geriatric psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. Aaron P. Greenstein go to medical school?
Dr. Greenstein graduated from New York Medical College in 2017.
What drugs does Dr. Aaron P. Greenstein prescribe most?
In 2024 Medicare Part D data, Dr. Greenstein's most prescribed drugs by claims were Clonazepam, Olanzapine and Mirtazapine.
Has Dr. Aaron P. Greenstein received payments from drug or device companies?
CMS Open Payments shows $1,407 in general payments to Dr. Greenstein from 8 companies from 2023 to 2025. The largest total came from Lundbeck LLC.
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How long has Dr. Aaron P. Greenstein been practicing?
Dr. Greenstein graduated from medical school in 2017, 9 years ago.
Does Dr. Aaron P. Greenstein do research?
Dmand AI links 2 publications to Dr. Greenstein.
Who does Dr. Aaron P. Greenstein publish with?
Dr. Greenstein's most frequent co-authors are Kevin Jaijin Li, MD (1 shared paper) and Haley Volk Solomon, DO (1 shared paper).
What insurance does Dr. Aaron P. Greenstein accept?
Dr. Greenstein is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and DentaQuest. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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