Dr. Gan Xon Ng, MD

  • San Francisco, CA
  • Hospitalist
NPI1588636641
Medicare services, 2019
335
Part D claims, 2024
3,016
Publications
1
Hospital affiliations
2
Medical groups
3
Practice address
845 Jackson St, San Francisco, CA 94133
Practice phone
Call (415) 982-2400
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Chinese Hospital

Hospital · San Francisco, California

See all 5 affiliations

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Dr. Gan Xon Ng is a hospitalist in San Francisco, California

Dr. Ng practices at Chinese Hospital in San Francisco, California, part of Chinese Hospital.

Dr. Ng's NPI, 1588636641, was assigned on February 3, 2006. Dr. Ng graduated from Boston University School Of Medicine in 1999. Dr. Ng holds California license C53500.

NPI and contact details
NPI enumeration date
February 3, 2006
NPI status
Active
Practice phone
(415) 982-2400
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1999

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Gan Xon Ng practices at Chinese Hospital in San Francisco, California

Dr. Ng's primary practice is Chinese Hospital, at 845 Jackson St, San Francisco, CA 94133 in San Francisco County. The practice phone is (415) 982-2400.

  • Chinese Hospital
    845 Jackson St, San Francisco, CA 94133 · San Francisco CountyPhone(415) 982-2400

Source: Dmand AI Affiliation Data

Dr. Gan Xon Ng is affiliated with 2 sites of care and 3 medical groups

Dr. Ng's primary practice is Chinese Hospital in San Francisco, California, part of Chinese Hospital. Dr. Ng is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Ng to 2 more medical groups, each named with a free account.

See all 5 affiliations for Dr. Ng

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Gan Xon Ng's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ng practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Chinese HospitalAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gan Xon Ng is one of 3,186 hospitalists in California

Hospitalist is Dr. Ng's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Ng is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Ng's licenses on file in 3 states: California, New York and Massachusetts.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense C53500 · 2008 to 2026 · taxonomy 208M00000X
  • Internal medicine, New YorkLicense 230318 · 2003 to 2021 · taxonomy 207R00000X
  • Massachusetts license2002 to 2005

Hospitalists near Dr. Ng

Counts of hospitalists 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. Gan Xon Ng billed Medicare for 335 services in 2019

CMS data shows 335 Medicare services from Dr. Ng across 7 procedure codes in 2019. Medicare paid $29,123 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2019335
Paid by Medicare$29,123
Procedure codes7

Dr. Ng's Medicare services by type, 2018 to 2019

  • 2018
  • 2019
Office and hospital visits
2018: 6152019: 28354%
Surgery
2018: 342019: 5253%

Dr. Ng compared with the California median for hospitalists, 2019

  • Dr. Ng
  • California median
Medicare services
335vs 43022% below
Part D claims
2,564vs 6937.2 times

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Dr. Ng's most billed Medicare procedure codes, 2019

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Ng

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gan Xon Ng's patients have a median age of 86

Across all payers, Dmand AI patient panel data puts Dr. Ng's median patient age at 86, with 65% women.

Dr. Ng's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 86

Patient panel by sex, all payers

  • Women65%
  • Men29%

Source: Dmand AI Patient Panel Data

Dr. Gan Xon Ng wrote 3,016 Medicare Part D claims in 2024

In 2024, Dr. Ng wrote 3,016 Medicare Part D claims for 229 patients. 85% of them were for generic drugs. CMS names the drug for 2,564 of them, across 66 drugs with 11 or more claims each, at $196,437 in total drug cost. In 2023, CMS named 1,744 claims across 46 drugs.

Part D claims, 20243,016
Drugs named by CMS66
Total drug cost$196,437
Part D patients229

Dr. Ng's Part D claims by kind of drug, 2024

  • Generic2,562 claims85%
  • Brand-name442 claims15%
  • Other12 claims0%

Dr. Ng'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. Ng's Part D claims, 2024

  • Opioids1%43 of 3,016 claims
  • Antibiotics1%26 of 3,016 claims
  • Antipsychotics, patients 65 and over1%39 of 3,016 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: 1,7442024: 2,56447%

Drugs named by CMS: 66 in 2024, 46 in 2023.

See all prescribing by Dr. Ng

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. Gan Xon Ng has 1 publication on record

Dmand AI links 1 paper to Dr. Ng in 2014. Dr. Ng's most frequent co-author is Justin Ruey Tse, MD.

Papers1

Dr. Ng's most frequent co-authors

Recent publications by Dr. Ng

See all 1 publications and co-authors

See who Dr. Ng researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ng works with, so you can find a warm path to the right hospitalists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Gan Xon Ng graduated from Boston University School Of Medicine

Dr. Ng graduated from Boston University School Of Medicine in 1999. Dr. Ng is a member of SHM.

  1. Medical schoolBoston University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Gan Xon Ng accepts plans from 13 insurance carriers

Dr. Ng is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Aetna
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +5 more carriersWith a free account

Plan types Dr. Ng accepts, by number of carriers

  1. PPO9
  2. HMO6
  3. Medicare5
  4. EPO3
  5. POS2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Gan Xon Ng's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gan Xon Ng

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. Gan Xon Ng's NPI number?

Dr. Gan Xon Ng's NPI number is 1588636641. It was assigned on February 3, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Gan Xon Ng?

Dr. Gan Xon Ng is a hospitalist in San Francisco, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Gan Xon Ng practice?

Dr. Ng practices at 845 Jackson St, San Francisco, CA 94133. Dr. Ng's primary practice is Chinese Hospital in San Francisco, California, part of Chinese Hospital. Dmand AI also links Dr. Ng to 2 medical groups.

What is Dr. Gan Xon Ng's office phone number?

The practice phone on file for Dr. Ng is (415) 982-2400.

What is Dr. Gan Xon Ng's medical license number?

Dr. Ng holds California license C53500, one of the licenses on file in 3 states.

Which states has Dr. Gan Xon Ng been licensed in?

Dmand AI has state licenses on file for Dr. Ng in California (2008 to 2026), New York (2003 to 2021) and Massachusetts (2002 to 2005).

Which hospitals is Dr. Gan Xon Ng affiliated with?

Dr. Ng practices at Chinese Hospital in San Francisco, California. Dr. Ng is also affiliated with Ronald Reagan UCLA Medical Center.

What medical group is Dr. Gan Xon Ng part of?

Dr. Ng is linked to UCSF Pediatrics. Dmand AI links Dr. Ng to 2 more medical groups.

Does Dr. Gan Xon Ng accept Medicare?

Yes. CMS data shows Dr. Ng billed Medicare for 335 services in 2019.

Is Dr. Gan Xon Ng board certified?

Yes. Dr. Ng is board certified in internal medicine by the American Board of Internal Medicine.

Show 7 more questionsShow fewer questions

What services does Dr. Gan Xon Ng bill to Medicare?

In 2019, Dr. Ng's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and surgery: digestive system (49083).

Where did Dr. Gan Xon Ng go to medical school?

Dr. Ng graduated from Boston University School Of Medicine in 1999.

What drugs does Dr. Gan Xon Ng prescribe most?

In 2024 Medicare Part D data, Dr. Ng's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.

How long has Dr. Gan Xon Ng been practicing?

Dr. Ng graduated from medical school in 1999, 27 years ago.

Does Dr. Gan Xon Ng do research?

Dmand AI links 1 publication to Dr. Ng.

Who does Dr. Gan Xon Ng publish with?

Dr. Ng's most frequent co-authors are Justin Ruey Tse, MD (1 shared paper).

What insurance does Dr. Gan Xon Ng accept?

Dr. Ng is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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