Dr. Siri Sunderi Cheng, MD
- Part D claims, 2024
- 141
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2007
- Practice address
- 2750 Sycamore Dr, Simi Valley, CA 93065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aspen Surgery Center - HOPD
Acute Care Hospital outpatient department · Simi Valley, California
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Dr. Siri Sunderi Cheng is an otolaryngologist in Walnut Creek, California
Dr. Cheng practices at Aspen Surgery Center - HOPD in Simi Valley, California.
Dr. Cheng's NPI, 1992853600, was assigned on January 8, 2007. Dr. Cheng graduated from The University of New Mexico School of Medicine in 2004. Dr. Cheng holds California license A94243.
- NPI
- 1992853600NPI Registry (opens in a new tab)
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Siri Sunderi Cheng practices in Simi Valley and Walnut Creek
Dr. Cheng's primary practice is Aspen Surgery Center - HOPD, at 2750 Sycamore Dr, Simi Valley, CA 93065. Dr. Cheng also practices at Aspen Surgery Center, 133 La Casa Via, Walnut Creek, CA 94598.
- Aspen Surgery Center - HOPDPrimary2750 Sycamore Dr, Simi Valley, CA 93065
- Aspen Surgery Center133 La Casa Via, Walnut Creek, CA 94598 · Contra Costa CountyPhone(925) 210-8400
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Siri Sunderi Cheng is affiliated with 2 sites of care and 1 medical group
Dr. Cheng's primary practice is Aspen Surgery Center - HOPD in Simi Valley, California. Dr. Cheng is also affiliated with Contra Costa Regional Medical Center. The medical group on file is West County Adult Mental Health Services.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Siri Sunderi Cheng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cheng practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aspen Surgery Center - HOPD | 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. Siri Sunderi Cheng is one of 1,107 otolaryngologists in California
Otolaryngology is Dr. Cheng's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Cheng is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery. Dmand AI has Dr. Cheng's licenses on file in 2 states: California and Indiana.
Specialties and state licenses
- Otolaryngology, CaliforniaPrimary
- Indiana license
Otolaryngologists near Dr. Cheng
Counts of otolaryngologists 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. Siri Sunderi Cheng's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Cheng's median patient age at 61, with 50% women.
Dr. Cheng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Siri Sunderi Cheng wrote 141 Medicare Part D claims in 2024
In 2024, Dr. Cheng wrote 141 Medicare Part D claims for 55 patients. 83% of them were for generic drugs. CMS names the drug for 74 of them, across 4 drugs with 11 or more claims each, at $2,469 in total drug cost.
Dr. Cheng's Part D claims by kind of drug, 2024
- Generic117 claims83%
- Brand-name24 claims17%
Dr. Cheng'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. Cheng's Part D claims, 2024
- Antibiotics9%13 of 141 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Siri Sunderi Cheng graduated from The University of New Mexico School of Medicine
Dr. Cheng graduated from The University of New Mexico School of Medicine in 2004.
- Medical school
- Board certified in otolaryngology
Source: Dmand AI Professional Profile Data
Sources for Dr. Siri Sunderi Cheng'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | 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) |
| 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. Siri Sunderi Cheng
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. Siri Sunderi Cheng's NPI number?
Dr. Siri Sunderi Cheng's NPI number is 1992853600. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Siri Sunderi Cheng?
Dr. Siri Sunderi Cheng is an otolaryngologist in Walnut Creek, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Siri Sunderi Cheng practice?
Dr. Cheng practices at 2750 Sycamore Dr, Simi Valley, CA 93065. Dr. Cheng also practices at 133 La Casa Via, Walnut Creek, CA 94598. Dr. Cheng's primary practice is Aspen Surgery Center - HOPD in Simi Valley, California.
What is Dr. Siri Sunderi Cheng's medical license number?
Dr. Cheng holds California license A94243, one of the licenses on file in 2 states.
Which states has Dr. Siri Sunderi Cheng been licensed in?
Dmand AI has state licenses on file for Dr. Cheng in California (2006 to 2026) and Indiana (2009 to 2011).
Which hospitals is Dr. Siri Sunderi Cheng affiliated with?
Dr. Cheng is affiliated with Contra Costa Regional Medical Center.
What medical group is Dr. Siri Sunderi Cheng part of?
Dr. Cheng is linked to West County Adult Mental Health Services.
Is Dr. Siri Sunderi Cheng board certified?
Yes. Dr. Cheng is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery.
Where did Dr. Siri Sunderi Cheng go to medical school?
Dr. Cheng graduated from The University of New Mexico School of Medicine in 2004.
What drugs does Dr. Siri Sunderi Cheng prescribe most?
In 2024 Medicare Part D data, Dr. Cheng's most prescribed drugs by claims were Fluticasone Propionate, Azelastine HCl and Ciprofloxacin-Dexamethasone.
How long has Dr. Siri Sunderi Cheng been practicing?
Dr. Cheng graduated from medical school in 2004, 22 years ago.
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