Dr. Siamak Elyasi, MD
- Medicare services, 2023
- 525
- Part D claims, 2024
- 114
- Publications
- 2
- Industry payments
- $1,907
- Affiliated sites
- 2
- Practice address
- 2351 Loveridge Road, Pittsburg, CA 94565
- Practice phone
- Call (925) 427-4444
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Diamond Ridge Healthcare Center
Skilled Nursing Facility · Pittsburg, California
Find Dr. Elyasi'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. Siamak Elyasi is a family medicine physician in Pittsburg, California
Dr. Elyasi practices at Diamond Ridge Healthcare Center in Pittsburg, California.
Dr. Elyasi's NPI, 1467407809, was assigned on May 24, 2006. Dr. Elyasi graduated from Tehran University of Medical Sciences School of Medicine in 1976. Dr. Elyasi's California license number on file is A50205.
- NPI
- 1467407809NPI Registry (opens in a new tab)
- NPI enumeration date
- May 24, 2006
- NPI status
- Active
- Practice phone
- (925) 427-4444
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Siamak Elyasi practices at Diamond Ridge Healthcare Center in Pittsburg, California
Dr. Elyasi's primary practice is Diamond Ridge Healthcare Center, at 2351 Loveridge Road, Pittsburg, CA 94565 in Contra Costa County. The practice phone is (925) 427-4444.
- Diamond Ridge Healthcare Center2351 Loveridge Road, Pittsburg, CA 94565 · Contra Costa CountyPhone(925) 427-4444
Source: Dmand AI Affiliation Data
Dr. Siamak Elyasi is affiliated with 2 sites of care and 1 medical group
Dr. Elyasi's primary practice is Diamond Ridge Healthcare Center in Pittsburg, California. The medical group on file is Springhill Medical Group. Dmand AI also links Dr. Elyasi to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Siamak Elyasi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Elyasi practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Diamond Ridge Healthcare Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Siamak Elyasi is one of 15,680 family medicine physicians in California
Family medicine is Dr. Elyasi's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Elyasi's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, ankle or foot injury, arthritis, atrial fibrillation and flutter, cardiomyopathy, chest wall injury and chronic anemia among the conditions Dr. Elyasi treats.
Family medicine physicians near Dr. Elyasi
Counts of family 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. Siamak Elyasi billed Medicare for 525 services in 2023
CMS data shows 525 Medicare services from Dr. Elyasi across 4 procedure codes in 2023. Medicare paid $37,537 for them. Every service was in an office.
Dr. Elyasi's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 8632023: 49043%
- Other services
- 2022: 702023: 3550%
- Tests and treatments
- 2022: 462023: 0100%
Dr. Elyasi compared with the California median for family medicine physicians, 2023
- Dr. Elyasi
- California median
- Medicare services
- 525vs 2462.1 times
- Part D claims
- 2,224vs 8332.7 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Elyasi's most billed Medicare procedure codes, 2023
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. Elyasi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Elyasi and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Siamak Elyasi's patients have a median age of 77
Across all payers, Dmand AI patient panel data puts Dr. Elyasi's median patient age at 77, with 51% women.
Dr. Elyasi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Siamak Elyasi wrote 114 Medicare Part D claims in 2024
In 2024, Dr. Elyasi wrote 114 Medicare Part D claims for 51 patients. 88% of them were for generic drugs. They cover 60 drugs, with $152,556 in total drug cost. In 2022, CMS named 3,631 claims across 85 drugs.
Dr. Elyasi's Part D claims by kind of drug, 2024
- Generic100 claims88%
- Brand-name and other14 claims12%
Dr. Elyasi's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 3,6312023: 2,22439%
Drugs named by CMS: 60 in 2023, 85 in 2022.
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. Siamak Elyasi has 2 publications on record
Dmand AI links 2 papers to Dr. Elyasi.
Recent publications by Dr. Elyasi
See who Dr. Elyasi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Elyasi works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Siamak Elyasi received $1,907 in industry payments from 2016 to 2021
CMS Open Payments shows 26 general payments to Dr. Elyasi from 9 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $558.
General payments to Dr. Elyasi by program year, 2016 to 2021
General payments to Dr. Elyasi by kind, 2016 to 2021
- Food and beverage$1,88399%
- Education$251%
Companies that paid Dr. Elyasi the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Siamak Elyasi graduated from Tehran University of Medical Sciences School of Medicine
Dr. Elyasi graduated from Tehran University of Medical Sciences School of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Siamak Elyasi accepts plans from 6 insurance carriers
Dr. Elyasi is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- Regence Health Plans
- Molina
Plan types Dr. Elyasi accepts, by number of carriers
- Medicare6
- PPO5
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Siamak Elyasi'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 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) |
| 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. Siamak Elyasi
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. Siamak Elyasi's NPI number?
Dr. Siamak Elyasi's NPI number is 1467407809. It was assigned on May 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Siamak Elyasi?
Dr. Siamak Elyasi is a family medicine physician in Pittsburg, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Siamak Elyasi practice?
Dr. Elyasi practices at 2351 Loveridge Road, Pittsburg, CA 94565. Dr. Elyasi's primary practice is Diamond Ridge Healthcare Center in Pittsburg, California. Dmand AI also links Dr. Elyasi to 1 group practice or clinic.
What is Dr. Siamak Elyasi's office phone number?
The practice phone on file for Dr. Elyasi is (925) 427-4444.
What is Dr. Siamak Elyasi's medical license number?
Dr. Elyasi's California license number on file is A50205, one of the licenses on file in 2 states.
Which states has Dr. Siamak Elyasi been licensed in?
Dmand AI has state licenses on file for Dr. Elyasi in California (1991 to 2025) and Michigan (1991 to 1995).
What medical group is Dr. Siamak Elyasi part of?
Dr. Elyasi is linked to Springhill Medical Group.
Does Dr. Siamak Elyasi accept Medicare?
Yes. CMS data shows Dr. Elyasi billed Medicare for 525 services in 2023.
What services does Dr. Siamak Elyasi bill to Medicare?
In 2023, Dr. Elyasi's most billed Medicare services were care management and other visits (99490), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Siamak Elyasi go to medical school?
Dr. Elyasi graduated from Tehran University of Medical Sciences School of Medicine in 1976.
Show 5 more questionsShow fewer questions
What drugs does Dr. Siamak Elyasi prescribe most?
In 2023 Medicare Part D data, Dr. Elyasi's most prescribed drugs by claims were Amlodipine Besylate, Levothyroxine Sodium and Hydrocodone-Acetaminophen.
Has Dr. Siamak Elyasi received payments from drug or device companies?
CMS Open Payments shows $1,907 in general payments to Dr. Elyasi from 9 companies from 2016 to 2021. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Siamak Elyasi been practicing?
Dr. Elyasi graduated from medical school in 1976, 50 years ago.
Does Dr. Siamak Elyasi do research?
Dmand AI links 2 publications to Dr. Elyasi.
What insurance does Dr. Siamak Elyasi accept?
Dr. Elyasi is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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