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Dr. William Charles Holmes, MD
NPI1356444905
- Publications
- 1
- Industry payments
- $44
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3900 University Avenue, Philadelphia, PA 19104
- Practice phone
- Call (215) 823-5967
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Holmes' 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 Charles Holmes is an internist in Philadelphia, Pennsylvania
Dr. Holmes practices in Philadelphia, Pennsylvania.
Dr. Holmes' NPI, 1356444905, was assigned on September 7, 2006. Dr. Holmes holds Pennsylvania license MD050425L.
NPI and contact details
- NPI
- 1356444905NPI Registry (opens in a new tab)
- NPI enumeration date
- September 7, 2006
- NPI status
- Active
- Practice phone
- (215) 823-5967
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. William Charles Holmes' practice address is in Philadelphia, Pennsylvania
Dr. Holmes' practice address in the NPI Registry is 3900 University Avenue, Philadelphia, PA 19104. The practice phone is (215) 823-5967.
- NPI Registry address3900 University Avenue, Philadelphia, PA 19104Phone(215) 823-5967
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. William Charles Holmes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holmes practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Holmes' practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. William Charles Holmes is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Holmes' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Holmes is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Holmes
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 Charles Holmes has 1 publication on record
Dmand AI links 1 paper to Dr. Holmes. Dr. Holmes' most frequent co-author is Anne G. Sadler, FNP-BC.
Papers1
Dr. Holmes' most frequent co-authors
- Anne G. Sadler, FNP-BC1 shared paper
Recent publications by Dr. Holmes
See who Dr. Holmes researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Holmes 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 Charles Holmes received $44 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Holmes from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Biosense Webster, Inc. paid the most, $44.
Companies that paid Dr. Holmes the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Charles Holmes'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| 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) |
| 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 Charles Holmes
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 Charles Holmes' NPI number?
Dr. William Charles Holmes' NPI number is 1356444905. It was assigned on September 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Charles Holmes?
Dr. William Charles Holmes is an internist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Charles Holmes practice?
Dr. Holmes practices at 3900 University Avenue, Philadelphia, PA 19104.
What is Dr. William Charles Holmes' office phone number?
The practice phone on file for Dr. Holmes is (215) 823-5967.
What is Dr. William Charles Holmes' medical license number?
Dr. Holmes holds Pennsylvania license MD050425L.
Has Dr. William Charles Holmes received payments from drug or device companies?
CMS Open Payments shows $44 in general payments to Dr. Holmes from 1 company from 2024 to 2024. The largest total came from Biosense Webster, Inc.
How long has Dr. William Charles Holmes been practicing?
Dr. Holmes' NPI was assigned in 2006.
Does Dr. William Charles Holmes do research?
Dmand AI links 1 publication to Dr. Holmes.
Who does Dr. William Charles Holmes publish with?
Dr. Holmes' most frequent co-authors are Anne G. Sadler, FNP-BC (1 shared paper).
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