Dr. Christopher Emmanuel Wissar Sr., MD
- Part D claims, 2024
- 4,525
- Industry payments
- $16
- Affiliated sites
- 2
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 1300 South Sunset Avenue, West Covina, CA 91790
- Practice phone
- Call (626) 960-6999
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AltaMed Medical and Dental Group - West Covina
FQHC - Main Site · West Covina, California
Find Dr. Wissar'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. Christopher Emmanuel Wissar Sr. is a family medicine physician in West Covina, California
Dr. Wissar practices at AltaMed Medical and Dental Group - West Covina in West Covina, California.
Dr. Wissar's NPI, 1649980327, was assigned on December 2, 2022. Dr. Wissar graduated from Universidad Autonoma de Guadalajara in 2005. Dr. Wissar holds California license P20.
- NPI
- 1649980327NPI Registry (opens in a new tab)
- NPI enumeration date
- December 2, 2022
- NPI status
- Active
- Practice phone
- (626) 960-6999
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Christopher Emmanuel Wissar Sr. practices at AltaMed Medical and Dental Group - West Covina in West Covina, California
Dr. Wissar's primary practice is AltaMed Medical and Dental Group - West Covina, at 1300 South Sunset Avenue, West Covina, CA 91790 in Los Angeles County. The practice phone is (626) 960-6999.
- AltaMed Medical and Dental Group - West Covina1300 South Sunset Avenue, West Covina, CA 91790 · Los Angeles CountyPhone(626) 960-6999
Source: Dmand AI Affiliation Data
Dr. Christopher Emmanuel Wissar Sr. is affiliated with 2 sites of care
Dr. Wissar's primary practice is AltaMed Medical and Dental Group - West Covina in West Covina, California. Dmand AI also links Dr. Wissar to 1 community health center, named with a free account. Dr. Wissar's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher Emmanuel Wissar Sr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wissar practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AltaMed Medical and Dental Group - West Covina | 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. Christopher Emmanuel Wissar Sr. is one of 15,680 family medicine physicians in California
Family medicine is Dr. Wissar's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Wissar is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Wissar
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. Christopher Emmanuel Wissar Sr.'s patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Wissar's median patient age at 43, with 63% women.
Dr. Wissar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women63%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Christopher Emmanuel Wissar Sr. wrote 4,525 Medicare Part D claims in 2024
In 2024, Dr. Wissar wrote 4,525 Medicare Part D claims for 530 patients. 82% of them were for generic drugs. CMS names the drug for 3,936 of them, across 76 drugs with 11 or more claims each, at $443,313 in total drug cost. In 2023, CMS named 2,768 claims across 67 drugs.
Dr. Wissar's Part D claims by kind of drug, 2024
- Generic3,723 claims82%
- Brand-name700 claims15%
- Other102 claims2%
Dr. Wissar'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. Wissar's Part D claims, 2024
- Antibiotics2%69 of 4,525 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: 2,7682024: 3,93642%
Drugs named by CMS: 76 in 2024, 67 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. Christopher Emmanuel Wissar Sr. received $16 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Wissar from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alkermes, Inc. paid the most, $16.
Companies that paid Dr. Wissar the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher Emmanuel Wissar Sr. graduated from Universidad Autonoma de Guadalajara
Dr. Wissar graduated from Universidad Autonoma de Guadalajara in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher Emmanuel Wissar Sr.'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 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. Christopher Emmanuel Wissar Sr.
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. Christopher Emmanuel Wissar Sr.'s NPI number?
Dr. Christopher Emmanuel Wissar Sr.'s NPI number is 1649980327. It was assigned on December 2, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Emmanuel Wissar Sr.?
Dr. Christopher Emmanuel Wissar Sr. is a family medicine physician in West Covina, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Christopher Emmanuel Wissar Sr. practice?
Dr. Wissar practices at 1300 South Sunset Avenue, West Covina, CA 91790. Dr. Wissar's primary practice is AltaMed Medical and Dental Group - West Covina in West Covina, California. Dmand AI also links Dr. Wissar to 1 community health center.
What is Dr. Christopher Emmanuel Wissar Sr.'s office phone number?
The practice phone on file for Dr. Wissar is (626) 960-6999.
What is Dr. Christopher Emmanuel Wissar Sr.'s medical license number?
Dr. Wissar holds California license P20.
Where did Dr. Christopher Emmanuel Wissar Sr. go to medical school?
Dr. Wissar graduated from Universidad Autonoma de Guadalajara in 2005.
What drugs does Dr. Christopher Emmanuel Wissar Sr. prescribe most?
In 2024 Medicare Part D data, Dr. Wissar's most prescribed drugs by claims were Atorvastatin Calcium, Metformin HCl and Lisinopril.
Has Dr. Christopher Emmanuel Wissar Sr. received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Dr. Wissar from 1 company from 2025 to 2025. The largest total came from Alkermes, Inc.
How long has Dr. Christopher Emmanuel Wissar Sr. been practicing?
Dr. Wissar graduated from medical school in 2005, 21 years ago.
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