Dr. Deena Marie Hassan, MD
- Part D claims, 2024
- 357
- Industry payments
- $41
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 529 Maple Ave, Los Angeles, CA 90013-1511
- Practice phone
- Call (213) 629-6200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Downtown Mental Health Center
Behavioral health facility · Los Angeles, California
Find Dr. Hassan's professional email, personal email and mobile number
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Dr. Deena Marie Hassan is a psychiatrist in Los Angeles, California
Dr. Hassan practices at Downtown Mental Health Center in Los Angeles, California.
Dr. Hassan's NPI, 1407272388, was assigned on March 14, 2014. Dr. Hassan graduated from Ross University School of Medicine in 2012. Dr. Hassan holds California license A137857.
- NPI
- 1407272388NPI Registry (opens in a new tab)
- NPI enumeration date
- March 14, 2014
- NPI status
- Active
- Practice phone
- (213) 629-6200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Deena Marie Hassan practices at Downtown Mental Health Center in Los Angeles, California
Dr. Hassan's primary practice is Downtown Mental Health Center, at 529 Maple Ave, Los Angeles, CA 90013-1511. The practice phone is (213) 629-6200.
- Downtown Mental Health Center529 Maple Ave, Los Angeles, CA 90013-1511Phone(213) 629-6200
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. Deena Marie Hassan is affiliated with 1 site of care and 1 medical group
Dr. Hassan's primary practice is Downtown Mental Health Center in Los Angeles, California. The medical group on file is GENESIS Older Adult Program (Los Angeles County Department of Mental Health).
Sources: Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Deena Marie Hassan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hassan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Downtown Mental Health Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Deena Marie Hassan is one of 6,803 psychiatrists in California
Psychiatry is Dr. Hassan's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Hassan is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology. Dr. Hassan is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Hassan
Counts of psychiatrists 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. Deena Marie Hassan's patients have a median age of 39
Across all payers, Dmand AI patient panel data puts Dr. Hassan's median patient age at 39, with 63% women.
Dr. Hassan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women63%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Deena Marie Hassan wrote 357 Medicare Part D claims in 2024
In 2024, Dr. Hassan wrote 357 Medicare Part D claims for 29 patients. 100% of them were for generic drugs. CMS names the drug for 293 of them, across 11 drugs with 11 or more claims each, at $15,472 in total drug cost. In 2023, CMS named 214 claims across 8 drugs.
Dr. Hassan's Part D claims by kind of drug, 2024
- Generic356 claims100%
- Brand-name and other1 claims0%
Dr. Hassan'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. Hassan's Part D claims, 2024
- Antipsychotics, patients 65 and over14%50 of 357 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: 2142024: 29337%
Drugs named by CMS: 11 in 2024, 8 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. Deena Marie Hassan received $41 in industry payments in 2019
CMS Open Payments shows 2 general payments to Dr. Hassan from 2 drug and device companies in 2019. Food and beverage make up the largest share, 100% of the total. Tris Pharma Inc paid the most, $25.
Companies that paid Dr. Hassan the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Deena Marie Hassan graduated from Ross University School of Medicine
Dr. Hassan graduated from Ross University School of Medicine in 2012.
- Medical school
- Board certified in child & adolescent psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Sources for Dr. Deena Marie Hassan'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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Deena Marie Hassan
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. Deena Marie Hassan's NPI number?
Dr. Deena Marie Hassan's NPI number is 1407272388. It was assigned on March 14, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Deena Marie Hassan?
Dr. Deena Marie Hassan is a psychiatrist in Los Angeles, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Deena Marie Hassan practice?
Dr. Hassan practices at 529 Maple Ave, Los Angeles, CA 90013-1511. Dr. Hassan's primary practice is Downtown Mental Health Center in Los Angeles, California.
What is Dr. Deena Marie Hassan's office phone number?
The practice phone on file for Dr. Hassan is (213) 629-6200.
What is Dr. Deena Marie Hassan's medical license number?
Dr. Hassan holds California license A137857.
What medical group is Dr. Deena Marie Hassan part of?
Dr. Hassan is linked to GENESIS Older Adult Program (Los Angeles County Department of Mental Health).
Is Dr. Deena Marie Hassan board certified?
Yes. Dr. Hassan is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. Deena Marie Hassan go to medical school?
Dr. Hassan graduated from Ross University School of Medicine in 2012.
What drugs does Dr. Deena Marie Hassan prescribe most?
In 2024 Medicare Part D data, Dr. Hassan's most prescribed drugs by claims were Quetiapine Fumarate, Olanzapine and Aripiprazole.
Has Dr. Deena Marie Hassan received payments from drug or device companies?
CMS Open Payments shows $41 in general payments to Dr. Hassan from 2 companies from 2019 to 2019. The largest total came from Tris Pharma Inc.
How long has Dr. Deena Marie Hassan been practicing?
Dr. Hassan graduated from medical school in 2012, 14 years ago.
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