Dr. Cathryn A. McWilliams, MD
- Industry payments
- $61
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 420 W Linfield Trappe Rd, Limerick, PA 19468
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Endoscopy Associates of Valley Forge, LLC - HOPD
Acute Care Hospital outpatient department · Limerick, Pennsylvania
Find Dr. McWilliams' 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. Cathryn A. McWilliams is a pediatrician in Royersford, Pennsylvania
Dr. McWilliams practices at Endoscopy Associates of Valley Forge, LLC - HOPD in Limerick, Pennsylvania.
Dr. McWilliams' NPI, 1932113453, was assigned on July 28, 2006. Dr. McWilliams graduated from Temple University School of Medicine in 1993. Dr. McWilliams holds Pennsylvania license MD058315L.
- NPI
- 1932113453NPI Registry (opens in a new tab)
- NPI enumeration date
- July 28, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Cathryn A. McWilliams practices at Endoscopy Associates of Valley Forge, LLC - HOPD in Limerick, Pennsylvania
Dr. McWilliams' primary practice is Endoscopy Associates of Valley Forge, LLC - HOPD, at 420 W Linfield Trappe Rd, Limerick, PA 19468.
- Endoscopy Associates of Valley Forge, LLC - HOPD420 W Linfield Trappe Rd, Limerick, PA 19468
Source: Dmand AI Affiliation Data
Dr. Cathryn A. McWilliams is affiliated with 2 sites of care and 1 medical group
Dr. McWilliams' primary practice is Endoscopy Associates of Valley Forge, LLC - HOPD in Limerick, Pennsylvania. The medical group on file is Clinical Care Associates (CCA), Penn Medicine. Dmand AI also links Dr. McWilliams to 1 more group practice or clinic, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Cathryn A. McWilliams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McWilliams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Endoscopy Associates of Valley Forge, LLC - HOPD | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Cathryn A. McWilliams is one of 2,468 pediatricians in Pennsylvania
Pediatrics is Dr. McWilliams' primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. McWilliams is licensed in Pennsylvania.
Specialties and state licenses
- Pediatrics, PennsylvaniaPrimary
Pediatricians near Dr. McWilliams
Counts of pediatricians 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. Cathryn A. McWilliams' patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. McWilliams' median patient age at 10, with 51% women.
Dr. McWilliams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women51%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Cathryn A. McWilliams received $61 in industry payments from 2016 to 2022
CMS Open Payments shows 3 general payments to Dr. McWilliams from 2 drug and device companies from 2016 to 2022. Education make up the largest share, 57% of the total. Pfizer Inc. paid the most, $35.
General payments to Dr. McWilliams by program year, 2016 to 2022
General payments to Dr. McWilliams by kind, 2016 to 2022
- Education$3557%
- Food and beverage$2643%
Companies that paid Dr. McWilliams 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. Cathryn A. McWilliams graduated from Temple University School of Medicine
Dr. McWilliams graduated from Temple University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cathryn A. McWilliams'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Cathryn A. McWilliams
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. Cathryn A. McWilliams' NPI number?
Dr. Cathryn A. McWilliams' NPI number is 1932113453. It was assigned on July 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Cathryn A. McWilliams?
Dr. Cathryn A. McWilliams is a pediatrician in Royersford, Pennsylvania. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Cathryn A. McWilliams practice?
Dr. McWilliams practices at 420 W Linfield Trappe Rd, Limerick, PA 19468. Dr. McWilliams' primary practice is Endoscopy Associates of Valley Forge, LLC - HOPD in Limerick, Pennsylvania. Dmand AI also links Dr. McWilliams to 1 group practice or clinic.
What is Dr. Cathryn A. McWilliams' medical license number?
Dr. McWilliams holds Pennsylvania license MD058315L.
What medical group is Dr. Cathryn A. McWilliams part of?
Dr. McWilliams is linked to Clinical Care Associates (CCA), Penn Medicine.
Where did Dr. Cathryn A. McWilliams go to medical school?
Dr. McWilliams graduated from Temple University School of Medicine in 1993.
Has Dr. Cathryn A. McWilliams received payments from drug or device companies?
CMS Open Payments shows $61 in general payments to Dr. McWilliams from 2 companies from 2016 to 2022. The largest total came from Pfizer Inc.
How long has Dr. Cathryn A. McWilliams been practicing?
Dr. McWilliams graduated from medical school in 1993, 33 years ago.
Selling to pediatrics practices?
See pediatricians in Pennsylvania by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card