Dr. Yao Y. Heng, MD
- Part D claims, 2024
- 229
- Hospital affiliations
- 1
- Industry payments
- $1,660
- Medical group
- 1
- Insurance carriers
- 1
- Practice address
- 2425 Geary Blvd, San Francisco, CA 94115
- Practice phone
- Call (415) 833-2646
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Heng'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. Yao Y. Heng is a gastroenterologist in San Francisco, California
Dr. Heng practices at San Francisco Medical Center in San Francisco, California, part of Kaiser Permanente.
Dr. Heng's NPI, 1225116825, was assigned on November 1, 2006. Dr. Heng graduated from UCSF School of Medicine in 1987. Dr. Heng holds California license G64935.
- NPI
- 1225116825NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921294000
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 833-2646
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Yao Y. Heng practices at San Francisco Medical Center in San Francisco, California
Dr. Heng's primary practice is San Francisco Medical Center, at 2425 Geary Blvd, San Francisco, CA 94115 in San Francisco County. The practice phone is (415) 833-2646.
- San Francisco Medical Center2425 Geary Blvd, San Francisco, CA 94115 · San Francisco CountyPhone(415) 833-2646
Source: Dmand AI Affiliation Data
Dr. Yao Y. Heng is affiliated with 2 sites of care and 1 medical group
Dr. Heng's primary practice is San Francisco Medical Center in San Francisco, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Heng 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. Yao Y. Heng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Heng practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Francisco Medical 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. Yao Y. Heng is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Heng's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Heng is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Heng is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Clinical focus
Dmand AI lists colonoscopy among the conditions Dr. Heng treats.
Gastroenterologists near Dr. Heng
Counts of gastroenterologists 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. Yao Y. Heng's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Heng's median patient age at 61, with 51% women.
Dr. Heng'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
- Women51%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Yao Y. Heng wrote 229 Medicare Part D claims in 2024
In 2024, Dr. Heng wrote 229 Medicare Part D claims for 89 patients. 77% of them were for generic drugs. CMS names the drug for 109 of them, across 5 drugs with 11 or more claims each, at $10,036 in total drug cost. In 2023, CMS named 100 claims across 5 drugs.
Dr. Heng's Part D claims by kind of drug, 2024
- Generic176 claims77%
- Brand-name53 claims23%
Dr. Heng'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1002024: 1099%
Drugs named by CMS: 5 in 2024, 5 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
How Dr. Yao Y. Heng takes part in Medicare
Dr. Heng accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Yao Y. Heng received $1,660 in industry payments from 2016 to 2024
CMS Open Payments shows 7 general payments to Dr. Heng from 3 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 93% of the total. Boston Scientific Corporation paid the most, $1,582.
General payments to Dr. Heng by program year, 2016 to 2024
General payments to Dr. Heng by kind, 2016 to 2024
- Travel and lodging$1,54193%
- Food and beverage$1197%
Companies that paid Dr. Heng the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Yao Y. Heng graduated from UCSF School of Medicine
Dr. Heng graduated from UCSF School of Medicine in 1987.
- Medical school
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Dr. Yao Y. Heng accepts plans from 1 insurance carrier
Dr. Heng is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Heng accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Yao Y. Heng'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| 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. Yao Y. Heng
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. Yao Y. Heng's NPI number?
Dr. Yao Y. Heng's NPI number is 1225116825. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Yao Y. Heng?
Dr. Yao Y. Heng is a gastroenterologist in San Francisco, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Yao Y. Heng practice?
Dr. Heng practices at 2425 Geary Blvd, San Francisco, CA 94115. Dr. Heng's primary practice is San Francisco Medical Center in San Francisco, California, part of Kaiser Permanente. Dmand AI also links Dr. Heng to 1 group practice or clinic.
What is Dr. Yao Y. Heng's office phone number?
The practice phone on file for Dr. Heng is (415) 833-2646.
What is Dr. Yao Y. Heng's medical license number?
Dr. Heng holds California license G64935.
Which hospitals is Dr. Yao Y. Heng affiliated with?
Dr. Heng practices at San Francisco Medical Center in San Francisco, California.
What medical group is Dr. Yao Y. Heng part of?
Dr. Heng is linked to The Permanente Medical Group, Inc.
Does Dr. Yao Y. Heng accept Medicare?
Yes. CMS lists Dr. Heng as accepting Medicare assignment.
Is Dr. Yao Y. Heng board certified?
Yes. Dr. Heng is board certified in gastroenterology by the American Board of Internal Medicine.
Where did Dr. Yao Y. Heng go to medical school?
Dr. Heng graduated from UCSF School of Medicine in 1987.
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What drugs does Dr. Yao Y. Heng prescribe most?
In 2024 Medicare Part D data, Dr. Heng's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Mesalamine.
Has Dr. Yao Y. Heng received payments from drug or device companies?
CMS Open Payments shows $1,660 in general payments to Dr. Heng from 3 companies from 2016 to 2024. The largest total came from Boston Scientific Corporation.
How long has Dr. Yao Y. Heng been practicing?
Dr. Heng graduated from medical school in 1987, 39 years ago.
What insurance does Dr. Yao Y. Heng accept?
Dr. Heng is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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