Dr. Clifford Chew Wong, MD
- Medicare services, 2020
- 49
- Part D claims, 2021
- 57
- Industry payments
- $65,802
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 2333 Buchanan St, San Francisco, CA 94115
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD
Acute Care Hospital outpatient department · San Francisco, California
Find Dr. Wong'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. Clifford Chew Wong is an internist in San Francisco, California
Dr. Wong practices at California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California.
Dr. Wong's NPI, 1871512301, was assigned on July 18, 2006. Dr. Wong holds California license G30443.
- NPI
- 1871512301NPI Registry (opens in a new tab)
- NPI enumeration date
- July 18, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Clifford Chew Wong practices at California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California
Dr. Wong's primary practice is California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD, at 2333 Buchanan St, San Francisco, CA 94115.
- California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD2333 Buchanan St, San Francisco, CA 94115
Source: Dmand AI Affiliation Data
Dr. Clifford Chew Wong is affiliated with 1 site of care
Dr. Wong's primary practice is California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Clifford Chew Wong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Clifford Chew Wong is one of 16,751 internists in California
Internal medicine is Dr. Wong's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Wong is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Wong
Counts of internists 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. Clifford Chew Wong billed Medicare for 49 services in 2020
CMS data shows 49 Medicare services from Dr. Wong across 2 procedure codes in 2020. Medicare paid $2,572 for them. Every service was in an office.
Dr. Wong's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 3042020: 3489%
- Other services
- 2019: 2282020: 1593%
- Tests and treatments
- 2019: 402020: 0100%
Dr. Wong compared with the California median for internists, 2020
- Dr. Wong
- California median
- Medicare services
- 49vs 36186% below
- Part D claims
- 57vs 42186% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Wong's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wong and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Clifford Chew Wong's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Wong's median patient age at 71, with 38% women.
Dr. Wong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women38%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Clifford Chew Wong wrote 57 Medicare Part D claims in 2021
In 2021, Dr. Wong wrote 57 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $465 in total drug cost. In 2020, CMS named 2,184 claims across 47 drugs.
Dr. Wong's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 2,1842021: 5797%
Drugs named by CMS: 3 in 2021, 47 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Clifford Chew Wong received $65,802 in industry payments from 2016 to 2020
CMS Open Payments shows 135 general payments to Dr. Wong from 3 drug and device companies from 2016 to 2020. Speaker and faculty fees make up the largest share, 62% of the total. Gilead Sciences, Inc. paid the most, $65,688.
General payments to Dr. Wong by program year, 2016 to 2020
General payments to Dr. Wong by kind, 2016 to 2020
- Speaker and faculty fees$40,52062%
- Travel and lodging$11,41617%
- Consulting fees$10,30016%
- Food and beverage$3,5675%
Companies that paid Dr. Wong the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Clifford Chew Wong'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Clifford Chew Wong
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. Clifford Chew Wong's NPI number?
Dr. Clifford Chew Wong's NPI number is 1871512301. It was assigned on July 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Clifford Chew Wong?
Dr. Clifford Chew Wong is an internist in San Francisco, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Clifford Chew Wong practice?
Dr. Wong practices at 2333 Buchanan St, San Francisco, CA 94115. Dr. Wong's primary practice is California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California.
What is Dr. Clifford Chew Wong's medical license number?
Dr. Wong holds California license G30443.
Does Dr. Clifford Chew Wong accept Medicare?
Yes. CMS data shows Dr. Wong billed Medicare for 49 services in 2020.
What services does Dr. Clifford Chew Wong bill to Medicare?
In 2020, Dr. Wong's most billed Medicare services were office visit, established patient (99213) and medicare service (G0439).
What drugs does Dr. Clifford Chew Wong prescribe most?
In 2021 Medicare Part D data, Dr. Wong's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Atorvastatin Calcium.
Has Dr. Clifford Chew Wong received payments from drug or device companies?
CMS Open Payments shows $65,802 in general payments to Dr. Wong from 3 companies from 2016 to 2020. The largest total came from Gilead Sciences, Inc.
How long has Dr. Clifford Chew Wong been practicing?
Dr. Wong's NPI was assigned in 2006.
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