Dr. William Ng, MD
- Medicare services, 2024
- 35
- Medicare patients, 2024
- 47
- Part D claims, 2024
- 1,759
- Publications
- 8
- Hospital affiliations
- 2
- Practice address
- 1777 West Yosemite Ave, Manteca, CA 95337
- Practice phone
- Call (209) 825-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ng'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. William Ng is an internist in Manteca, California
Dr. Ng practices at Manteca Medical Center in Manteca, California, part of Kaiser Permanente.
Dr. Ng's NPI, 1518298041, was assigned on January 22, 2010. Dr. Ng graduated from University of Hong Kong Faculty of Medicine in 1986. Dr. Ng's California license number on file is A110227.
- NPI
- 1518298041NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678605888
- NPI enumeration date
- January 22, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 825-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Ng practices at Manteca Medical Center in Manteca, California
Dr. Ng's primary practice is Manteca Medical Center, at 1777 West Yosemite Ave, Manteca, CA 95337 in San Joaquin County. The practice phone is (209) 825-3700.
- Manteca Medical Center1777 West Yosemite Ave, Manteca, CA 95337 · San Joaquin CountyPhone(209) 825-3700
Source: Dmand AI Affiliation Data
Dr. William Ng is affiliated with 2 sites of care and 1 medical group
Dr. Ng's primary practice is Manteca Medical Center in Manteca, California, part of Kaiser Permanente. Dr. Ng is also affiliated with Dignity Health - St. Joseph's Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William 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.
| Site | EHR vendor and product |
|---|---|
| Manteca 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. William Ng is one of 16,751 internists in California
Internal medicine is Dr. Ng's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ng is board certified in cardiovascular disease by the American Board of Internal Medicine. Dr. Ng has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Ng
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. William Ng billed Medicare for 35 services in 2024
CMS data shows 35 Medicare services from Dr. Ng across 1 procedure code in 2024, for 47 Medicare patients. Medicare paid $183 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 282024: 3525%
Dr. Ng compared with the California median for internists, 2024
- Dr. Ng
- California median
- Medicare services
- 35vs 36190% below
- Medicare patients
- 47vs 15169% below
- Part D claims
- 1,602vs 4213.8 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ng's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Ng treated 47 Medicare patients in 2024, average age 69
CMS counts 47 Medicare patients who saw Dr. Ng in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have high blood pressure, and 62% have high cholesterol. 47% are also on Medicaid. Their average risk score is 2.43, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ng's median patient age at 56, with 60% women.
Dr. Ng's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ng's Medicare patients by sex, 2024
- Women1838%
- Men2962%
Chronic conditions among Dr. Ng's Medicare patients, 2024
- High blood pressure75%
- High cholesterol62%
- Diabetes51%
- Atrial fibrillation40%
- Heart failure40%
- Ischemic heart disease38%
- Chronic kidney disease36%
- Arthritis26%
Share of Medicare patients with each condition. A patient can have several.
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 56
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Ng wrote 1,759 Medicare Part D claims in 2024
In 2024, Dr. Ng wrote 1,759 Medicare Part D claims for 409 patients. 89% of them were for generic drugs. CMS names the drug for 1,602 of them, across 32 drugs with 11 or more claims each, at $155,022 in total drug cost. In 2023, CMS named 1,477 claims across 32 drugs.
Dr. Ng's Part D claims by kind of drug, 2024
- Generic1,571 claims89%
- Brand-name188 claims11%
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
- Antibiotics1%22 of 1,759 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: 1,4772024: 1,6028%
Drugs named by CMS: 32 in 2024, 32 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. William Ng takes part in Medicare
Dr. Ng accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. William Ng has 8 publications on record
Dmand AI links 8 papers to Dr. Ng, published from 2015 to 2021. 2020 was the busiest year, with 3. The most frequent topics are Angioplasty, Balloon, Coronary, Coronary Artery Disease and COVID-19. Dr. Ng has published most often in PLoS One. Dr. Ng's most frequent co-authors are Robert J. Lundstrom, MD, Edward John McNulty, MD and Joseph Peter Cravero, MD.
Dr. Ng's papers by year, 2015 to 2021
Topics Dr. Ng writes about most
- Angioplasty, Balloon, Coronary
- Coronary Artery Disease
- COVID-19
- Equipment Design
- Equipment Reuse
- Filtration
- Intubation, Intratracheal
- Pandemics
Dr. Ng's most frequent co-authors
- Robert J. Lundstrom, MD2 shared papers
- Edward John McNulty, MD2 shared papers
- Joseph Peter Cravero, MD1 shared paper
Recent publications by Dr. Ng
J Cardiothorac Vasc Anesth
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 internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Ng received $364 in industry payments from 2016 to 2022
CMS Open Payments shows 10 general payments to Dr. Ng from 4 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $168.
General payments to Dr. Ng by program year, 2016 to 2022
Companies that paid Dr. Ng the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Ng graduated from University of Hong Kong Faculty of Medicine
Dr. Ng graduated from University of Hong Kong Faculty of Medicine in 1986.
- Medical school
- Board certified in cardiovascular disease
- Board certified in internal medicine
- Board certified in interventional cardiology
Source: Dmand AI Professional Profile Data
Dr. William Ng accepts plans from 3 insurance carriers
Dr. Ng is in network with 3 carriers, including Kaiser Permanente, Molina and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Kaiser Permanente
- Molina
- CMS Medicare
Plan types Dr. Ng accepts, by number of carriers
- HMO2
- Medicare2
- EPO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. William Ng'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. William 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. William Ng's NPI number?
Dr. William Ng's NPI number is 1518298041. It was assigned on January 22, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. William Ng?
Dr. William Ng is an internist in Manteca, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Ng practice?
Dr. Ng practices at 1777 West Yosemite Ave, Manteca, CA 95337. Dr. Ng's primary practice is Manteca Medical Center in Manteca, California, part of Kaiser Permanente.
What is Dr. William Ng's office phone number?
The practice phone on file for Dr. Ng is (209) 825-3700.
What is Dr. William Ng's medical license number?
Dr. Ng's California license number on file is A110227.
Which hospitals is Dr. William Ng affiliated with?
Dr. Ng practices at Manteca Medical Center in Manteca, California. Dr. Ng is also affiliated with Dignity Health - St. Joseph's Medical Center.
What medical group is Dr. William Ng part of?
Dr. Ng is linked to The Permanente Medical Group, Inc.
Does Dr. William Ng accept Medicare?
Yes. CMS data shows Dr. Ng billed Medicare for 35 services in 2024, and Dr. Ng accepts Medicare assignment.
How many Medicare patients does Dr. William Ng see?
CMS counts 47 Medicare patients who saw Dr. Ng in 2024, with an average age of 69.
Is Dr. William Ng board certified?
Yes. Dr. Ng is board certified in cardiovascular disease by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. William Ng bill to Medicare?
In 2024, Dr. Ng's most billed Medicare services were heart test or procedure (93010).
Where did Dr. William Ng go to medical school?
Dr. Ng graduated from University of Hong Kong Faculty of Medicine in 1986.
What drugs does Dr. William Ng prescribe most?
In 2024 Medicare Part D data, Dr. Ng's most prescribed drugs by claims were Metoprolol Succinate, Lisinopril and Losartan Potassium.
Has Dr. William Ng received payments from drug or device companies?
CMS Open Payments shows $364 in general payments to Dr. Ng from 4 companies from 2016 to 2022. The largest total came from Medtronic, Inc.
How long has Dr. William Ng been practicing?
Dr. Ng graduated from medical school in 1986, 40 years ago.
Does Dr. William Ng do research?
Dmand AI links 8 publications to Dr. Ng, published from 2015 to 2021.
Who does Dr. William Ng publish with?
Dr. Ng's most frequent co-authors are Robert J. Lundstrom, MD (2 shared papers), Edward John McNulty, MD (2 shared papers) and Joseph Peter Cravero, MD (1 shared paper).
What insurance does Dr. William Ng accept?
Dr. Ng is in network with 3 carriers, including Kaiser Permanente, Molina and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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