Dr. Christopher J. Williamson II, MD
- Medicare services, 2024
- 948
- Medicare patients, 2024
- 422
- Part D claims, 2024
- 63
- Hospital affiliations
- 3
- Industry payments
- $8,489
- Practice address
- 5501 Old York Road, Philadelphia, PA 19141
- Practice phone
- Call (215) 456-6090
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Williamson's professional email, personal email and mobile number
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Dr. Christopher J. Williamson II is an orthopedic surgeon in Philadelphia, Pennsylvania
Dr. Williamson practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University.
Dr. Williamson's NPI, 1083900351, was assigned on June 24, 2011. Dr. Williamson graduated from Temple University School of Medicine in 2011. Dr. Williamson holds Pennsylvania license MD454620.
- NPI
- 1083900351NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658663752
- NPI enumeration date
- June 24, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 456-6090
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher J. Williamson II practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania
Dr. Williamson's primary practice is Jefferson Einstein Philadelphia Hospital, at 5501 Old York Road, Philadelphia, PA 19141 in Philadelphia County. The practice phone is (215) 456-6090.
- Jefferson Einstein Philadelphia Hospital5501 Old York Road, Philadelphia, PA 19141 · Philadelphia CountyPhone(215) 456-6090
Source: Dmand AI Affiliation Data
Dr. Christopher J. Williamson II is affiliated with 5 sites of care and 2 medical groups
Dr. Williamson's primary practice is Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. Dr. Williamson is also affiliated with Jefferson Einstein Montgomery Hospital. The medical group on file is Phoenix Physical Therapy. Dmand AI also links Dr. Williamson to 1 more hospital, 1 dialysis center, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher J. Williamson II's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williamson practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Einstein Philadelphia Hospital | Available with a free account |
| +4 more sites and 1 medical group | 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 Thomas Jefferson University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Christopher J. Williamson II is one of 994 orthopedic surgeons in Pennsylvania
Orthopaedic surgery is Dr. Williamson's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Williamson is licensed in Pennsylvania.
Specialties and state licenses
- Orthopaedic surgery, PennsylvaniaPrimary
Orthopedic surgeons near Dr. Williamson
Counts of orthopedic surgeons 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. Christopher J. Williamson II billed Medicare for 948 services in 2024
CMS data shows 948 Medicare services from Dr. Williamson across 18 procedure codes in 2024, for 422 Medicare patients. Medicare paid $67,105 for them.
Dr. Williamson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5472024: 47813%
- Imaging
- 2023: 2032024: 1906%
- Surgery
- 2023: 1862024: 1718%
- Drugs given in the office
- 2023: 1522024: 10928%
Where Dr. Williamson's Medicare services took place, 2024
- In an office87192%
- In a facility778%
Dr. Williamson compared with the Pennsylvania median for orthopedic surgeons, 2024
- Dr. Williamson
- Pennsylvania median
- Medicare services
- 948vs 1,15318% below
- Medicare patients
- 422vs 27653% above
- Part D claims
- 27vs 10274% below
Medians across 929 orthopedic surgeons in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Williamson'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.
Need commercial claims for Dr. Williamson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williamson and other orthopedic surgeons in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher J. Williamson II treated 422 Medicare patients in 2024, average age 74
CMS counts 422 Medicare patients who saw Dr. Williamson in 2024. The largest group is 65 to 74, with 191 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williamson's median patient age at 61, with 55% women.
Dr. Williamson's Medicare patients by age, 2024
Dr. Williamson's Medicare patients by sex, 2024
- Women26663%
- Men15637%
Chronic conditions among Dr. Williamson's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis59%
- Ischemic heart disease37%
- Anxiety32%
- Mood disorders30%
- Diabetes29%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williamson'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
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher J. Williamson II wrote 63 Medicare Part D claims in 2024
In 2024, Dr. Williamson wrote 63 Medicare Part D claims for 55 patients. 100% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $49 in total drug cost. In 2023, CMS named 25 claims across 2 drugs.
Dr. Williamson'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. Williamson's Part D claims, 2024
- Opioids49%31 of 63 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: 252024: 278%
Drugs named by CMS: 2 in 2024, 2 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
Dr. Christopher J. Williamson II ranks in the 65th percentile for removal of tissue in Medicare
Dr. Williamson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of removal of tissue by Dr. Williamson, more than 65% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Williamson ranks in Medicare procedure volume
- Removal of tissue
- 65th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of nail tissue: 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. Christopher J. Williamson II received $8,489 in industry payments from 2016 to 2025
CMS Open Payments shows 150 general payments to Dr. Williamson from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 53% of the total. Zimmer Biomet Holdings, Inc. paid the most, $2,150.
General payments to Dr. Williamson by program year, 2016 to 2025
General payments to Dr. Williamson by kind, 2016 to 2025
- Food and beverage$4,47353%
- Travel and lodging$3,52742%
- Education$4896%
Companies that paid Dr. Williamson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher J. Williamson II graduated from Temple University School of Medicine
Dr. Williamson graduated from Temple University School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher J. Williamson II'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)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 |
| 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. Christopher J. Williamson II
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. Christopher J. Williamson II's NPI number?
Dr. Christopher J. Williamson II's NPI number is 1083900351. It was assigned on June 24, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher J. Williamson II?
Dr. Christopher J. Williamson II is an orthopedic surgeon in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Christopher J. Williamson II practice?
Dr. Williamson practices at 5501 Old York Road, Philadelphia, PA 19141. Dr. Williamson's primary practice is Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. Dmand AI also links Dr. Williamson to 1 hospital, 1 dialysis center, 1 group practice or clinic and 1 medical group.
What is Dr. Christopher J. Williamson II's office phone number?
The practice phone on file for Dr. Williamson is (215) 456-6090.
What is Dr. Christopher J. Williamson II's medical license number?
Dr. Williamson holds Pennsylvania license MD454620.
Which hospitals is Dr. Christopher J. Williamson II affiliated with?
Dr. Williamson practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania. Dr. Williamson is also affiliated with Jefferson Einstein Montgomery Hospital. Dmand AI links Dr. Williamson to 1 more hospital.
What medical group is Dr. Christopher J. Williamson II part of?
Dr. Williamson is linked to Phoenix Physical Therapy. Dmand AI links Dr. Williamson to 1 more medical group.
Does Dr. Christopher J. Williamson II accept Medicare?
Yes. CMS data shows Dr. Williamson billed Medicare for 948 services in 2024, and Dr. Williamson accepts Medicare assignment.
How many Medicare patients does Dr. Christopher J. Williamson II see?
CMS counts 422 Medicare patients who saw Dr. Williamson in 2024, with an average age of 74.
What services does Dr. Christopher J. Williamson II bill to Medicare?
In 2024, Dr. Williamson's most billed Medicare services were office visit, established patient (99213), injected or infused drug (J3301) and office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. Christopher J. Williamson II go to medical school?
Dr. Williamson graduated from Temple University School of Medicine in 2011.
What drugs does Dr. Christopher J. Williamson II prescribe most?
In 2024 Medicare Part D data, Dr. Williamson's most prescribed drugs by claims were Meloxicam and Tramadol HCl.
Has Dr. Christopher J. Williamson II received payments from drug or device companies?
CMS Open Payments shows $8,489 in general payments to Dr. Williamson from 25 companies from 2016 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Christopher J. Williamson II been practicing?
Dr. Williamson graduated from medical school in 2011, 15 years ago.
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