Dr. Sameer K. Hassamal, MD
- Medicare services, 2024
- 199
- Medicare patients, 2024
- 44
- Part D claims, 2024
- 987
- Publications
- 14
- Clinical trials
- 1
- Practice address
- 21950 Copley Dr, Diamond Bar, CA 91765
- Practice phone
- Call (626) 840-1023
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Call the Car
Diamond Bar, California
Find Dr. Hassamal'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. Sameer K. Hassamal is a psychiatrist in Diamond Bar, California
Dr. Hassamal practices at Call the Car in Diamond Bar, California.
Dr. Hassamal's NPI, 1538459011, was assigned on April 18, 2011. Dr. Hassamal graduated from Other in 2006. Dr. Hassamal holds California license A133740.
- NPI
- 1538459011NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921246877
- NPI enumeration date
- April 18, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (626) 840-1023
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sameer K. Hassamal practices at Call the Car in Diamond Bar, California
Dr. Hassamal's primary practice is Call the Car, at 21950 Copley Dr, Diamond Bar, CA 91765 in Los Angeles County. The practice phone is (626) 840-1023.
- Call the Car21950 Copley Dr, Diamond Bar, CA 91765 · Los Angeles CountyPhone(626) 840-1023
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sameer K. Hassamal is affiliated with 4 sites of care and 6 medical groups
Dr. Hassamal's primary practice is Call the Car in Diamond Bar, California. Dr. Hassamal is also affiliated with Chino Valley Medical Center. The medical group on file is PIH Health Physicians. Dmand AI also links Dr. Hassamal to 1 more hospital, 5 medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sameer K. Hassamal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hassamal practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Call the Car | Available with a free account |
| +3 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Sameer K. Hassamal is one of 6,803 psychiatrists in California
Psychiatry is Dr. Hassamal's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Hassamal is board certified in addiction psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Hassamal's licenses on file in 2 states: California and Virginia.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Virginia license
Clinical focus
Dmand AI lists ADHD, bipolar disorder and schizophrenia among the conditions Dr. Hassamal treats.
Psychiatrists near Dr. Hassamal
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. Sameer K. Hassamal billed Medicare for 199 services in 2024
CMS data shows 199 Medicare services from Dr. Hassamal across 4 procedure codes in 2024, for 44 Medicare patients. Medicare paid $22,161 for them. Every service was in an office.
Dr. Hassamal's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 532024: 134153%
- Tests and treatments
- 2023: 02024: 65
Dr. Hassamal compared with the California median for psychiatrists, 2024
- Dr. Hassamal
- California median
- Medicare services
- 199vs 11967% above
- Medicare patients
- 44vs 417% above
- Part D claims
- 809vs 1445.6 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Hassamal'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.
Need commercial claims for Dr. Hassamal?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hassamal and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sameer K. Hassamal treated 44 Medicare patients in 2024, average age 66
CMS counts 44 Medicare patients who saw Dr. Hassamal in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have mood disorders, and 68% have depression. 61% are also on Medicaid. Their average risk score is 1.52, 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. Hassamal's median patient age at 38, with 54% women.
Dr. Hassamal's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hassamal's Medicare patients by sex, 2024
- Women2250%
- Men2250%
Chronic conditions among Dr. Hassamal's Medicare patients, 2024
- Mood disorders75%
- Depression68%
- High blood pressure68%
- High cholesterol64%
- Anxiety55%
- Arthritis48%
- Schizophrenia and other psychoses32%
- Diabetes30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hassamal's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sameer K. Hassamal wrote 987 Medicare Part D claims in 2024
In 2024, Dr. Hassamal wrote 987 Medicare Part D claims for 68 patients. 93% of them were for generic drugs. CMS names the drug for 809 of them, across 34 drugs with 11 or more claims each, at $35,675 in total drug cost. In 2023, CMS named 701 claims across 28 drugs.
Dr. Hassamal's Part D claims by kind of drug, 2024
- Generic915 claims93%
- Brand-name72 claims7%
Dr. Hassamal'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. Hassamal's Part D claims, 2024
- Antipsychotics, patients 65 and over14%141 of 987 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: 7012024: 80915%
Drugs named by CMS: 34 in 2024, 28 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
Dr. Sameer K. Hassamal offers telehealth to Medicare patients
Dr. Hassamal accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hassamal as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Sameer K. Hassamal has 14 publications on record
Dmand AI links 14 papers to Dr. Hassamal, published from 2013 to 2021. 2015 was the busiest year, with 4. The most frequent topics are Anxiety, Cognition Disorders and COVID-19. Dr. Hassamal's most frequent co-authors are Michael M. Neeki, DO, Atit Bhattachan, MBBS and William Dale, MD, PhD.
Dr. Hassamal's papers by year, 2013 to 2021
Topics Dr. Hassamal writes about most
- Anxiety
- Cognition Disorders
- COVID-19
- Depression
- Pandemics
- Stress, Psychological
Dr. Hassamal's most frequent co-authors
- Michael M. Neeki, DO2 shared papers
- Atit Bhattachan, MBBS1 shared paper
- William Dale, MD, PhD1 shared paper
Recent publications by Dr. Hassamal
See who Dr. Hassamal researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hassamal works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Sameer K. Hassamal has worked on 1 clinical trial
Dmand AI links Dr. Hassamal to 1 clinical trial. Conditions studied include Depressive Disorder, Major and Depressive Disorder.
Conditions in Dr. Hassamal's trials
- Depressive Disorder, Major
- Depressive Disorder
Investigators on the most trials with Dr. Hassamal
Recent clinical trials with Dr. Hassamal
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Sameer K. Hassamal received $156 in industry payments from 2016 to 2023
CMS Open Payments shows 3 general payments to Dr. Hassamal from 1 drug or device company from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $156.
General payments to Dr. Hassamal by program year, 2016 to 2023
Companies that paid Dr. Hassamal the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sameer K. Hassamal graduated from Other
Dr. Hassamal graduated from Other in 2006.
- Medical school
- Board certified in addiction psychiatry
- Board certified in brain injury medicine
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Sameer K. Hassamal accepts plans from 8 insurance carriers
Dr. Hassamal is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
Plan types Dr. Hassamal accepts, by number of carriers
- Medicare8
- PPO6
- HMO4
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Sameer K. Hassamal'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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 |
| 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. Sameer K. Hassamal
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. Sameer K. Hassamal's NPI number?
Dr. Sameer K. Hassamal's NPI number is 1538459011. It was assigned on April 18, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Sameer K. Hassamal?
Dr. Sameer K. Hassamal is a psychiatrist in Diamond Bar, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Sameer K. Hassamal practice?
Dr. Hassamal practices at 21950 Copley Dr, Diamond Bar, CA 91765. Dr. Hassamal's primary practice is Call the Car in Diamond Bar, California. Dmand AI also links Dr. Hassamal to 1 hospital, 5 medical groups and 1 group practice or clinic.
What is Dr. Sameer K. Hassamal's office phone number?
The practice phone on file for Dr. Hassamal is (626) 840-1023.
What is Dr. Sameer K. Hassamal's medical license number?
Dr. Hassamal holds California license A133740, one of the licenses on file in 2 states.
Which states has Dr. Sameer K. Hassamal been licensed in?
Dmand AI has state licenses on file for Dr. Hassamal in California (2014 to 2026) and Virginia (2011 to 2016).
Which hospitals is Dr. Sameer K. Hassamal affiliated with?
Dr. Hassamal is affiliated with Chino Valley Medical Center. Dmand AI links Dr. Hassamal to 1 more hospital.
What medical group is Dr. Sameer K. Hassamal part of?
Dr. Hassamal is linked to PIH Health Physicians. Dmand AI links Dr. Hassamal to 5 more medical groups.
Does Dr. Sameer K. Hassamal accept Medicare?
Yes. CMS data shows Dr. Hassamal billed Medicare for 199 services in 2024, and Dr. Hassamal accepts Medicare assignment.
Does Dr. Sameer K. Hassamal offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hassamal as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Sameer K. Hassamal see?
CMS counts 44 Medicare patients who saw Dr. Hassamal in 2024, with an average age of 66.
Is Dr. Sameer K. Hassamal board certified?
Yes. Dr. Hassamal is board certified in addiction psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Sameer K. Hassamal bill to Medicare?
In 2024, Dr. Hassamal's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and psychiatric service (90833).
Where did Dr. Sameer K. Hassamal go to medical school?
Dr. Hassamal graduated from Other in 2006.
What drugs does Dr. Sameer K. Hassamal prescribe most?
In 2024 Medicare Part D data, Dr. Hassamal's most prescribed drugs by claims were Quetiapine Fumarate, Bupropion XL and Divalproex Sodium.
Has Dr. Sameer K. Hassamal received payments from drug or device companies?
CMS Open Payments shows $156 in general payments to Dr. Hassamal from 1 company from 2016 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Sameer K. Hassamal been practicing?
Dr. Hassamal graduated from medical school in 2006, 20 years ago.
Does Dr. Sameer K. Hassamal do research?
Dmand AI links 14 publications to Dr. Hassamal, published from 2013 to 2021. Dr. Hassamal has worked on 1 clinical trial.
Who does Dr. Sameer K. Hassamal publish with?
Dr. Hassamal's most frequent co-authors are Michael M. Neeki, DO (2 shared papers), Atit Bhattachan, MBBS (1 shared paper) and William Dale, MD, PhD (1 shared paper).
What insurance does Dr. Sameer K. Hassamal accept?
Dr. Hassamal is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
Selling to psychiatry practices?
See psychiatrists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card