Dr. John C. Witherell, MD
- Medicare services, 2024
- 2,985
- Medicare patients, 2024
- 1,155
- Part D claims, 2024
- 3,681
- MIPS score, 2024
- 87
- Hospital affiliations
- 1
- Practice address
- 300 Evergreen Drive, Glen Mills, PA 19342
- Practice phone
- Call (484) 846-5100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
ChristianaCare Surgery Center at Glen Mills
Surgery Center - Not Medicare-Certified · Glen Mills, Pennsylvania
Find Dr. Witherell's professional email, personal email and mobile number
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Dr. John C. Witherell is an ophthalmologist in Glen Mills, Pennsylvania
Dr. Witherell practices at ChristianaCare Surgery Center at Glen Mills in Glen Mills, Pennsylvania.
Dr. Witherell's NPI, 1811984206, was assigned on September 30, 2005. Dr. Witherell graduated from Jefferson Medical College of Thomas Jefferson University in 1994. Dr. Witherell holds Pennsylvania license MD060067L.
- NPI
- 1811984206NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325020316
- NPI enumeration date
- September 30, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (484) 846-5100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John C. Witherell practices at ChristianaCare Surgery Center at Glen Mills in Glen Mills, Pennsylvania
Dr. Witherell's primary practice is ChristianaCare Surgery Center at Glen Mills, at 300 Evergreen Drive, Glen Mills, PA 19342. The practice phone is (484) 846-5100.
- ChristianaCare Surgery Center at Glen Mills300 Evergreen Drive, Glen Mills, PA 19342Phone(484) 846-5100
Source: Dmand AI Affiliation Data
Dr. John C. Witherell is affiliated with 3 sites of care and 2 medical groups
Dr. Witherell's primary practice is ChristianaCare Surgery Center at Glen Mills in Glen Mills, Pennsylvania. Dr. Witherell is also affiliated with Wills Eye Hospital. Dmand AI also links Dr. Witherell to 2 more medical groups and 1 group practice or clinic, 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. John C. Witherell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Witherell practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ChristianaCare Surgery Center at Glen Mills | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John C. Witherell is one of 843 ophthalmologists in Pennsylvania
Ophthalmology is Dr. Witherell's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Witherell is licensed in Pennsylvania.
Specialties and state licenses
- Ophthalmology, PennsylvaniaPrimary
Ophthalmologists near Dr. Witherell
Counts of ophthalmologists 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. John C. Witherell billed Medicare for 2,985 services in 2024
CMS data shows 2,985 Medicare services from Dr. Witherell across 16 procedure codes in 2024, for 1,155 Medicare patients. Medicare paid $290,176 for them.
Dr. Witherell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,6332024: 1,6241%
- Tests and treatments
- 2023: 8692024: 8117%
- Surgery
- 2023: 3762024: 31018%
- Imaging
- 2023: 2132024: 24013%
Where Dr. Witherell's Medicare services took place, 2024
- In an office2,75592%
- In a facility2308%
Dr. Witherell compared with the Pennsylvania median for ophthalmologists, 2024
- Dr. Witherell
- Pennsylvania median
- Medicare services
- 2,985vs 1,3362.2 times
- Medicare patients
- 1,155vs 5242.2 times
- Part D claims
- 3,487vs 6205.6 times
Medians across 854 ophthalmologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Witherell'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Witherell and other ophthalmologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John C. Witherell treated 1,155 Medicare patients in 2024, average age 76
CMS counts 1,155 Medicare patients who saw Dr. Witherell in 2024. The largest group is 75 to 84, with 493 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Witherell's median patient age at 74, with 64% women.
Dr. Witherell's Medicare patients by age, 2024
Dr. Witherell's Medicare patients by sex, 2024
- Women74765%
- Men40835%
Chronic conditions among Dr. Witherell's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Diabetes30%
- Ischemic heart disease29%
- Anxiety23%
- Chronic kidney disease21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Witherell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John C. Witherell wrote 3,681 Medicare Part D claims in 2024
In 2024, Dr. Witherell wrote 3,681 Medicare Part D claims for 1,152 patients. 55% of them were for generic drugs. CMS names the drug for 3,487 of them, across 28 drugs with 11 or more claims each, at $433,729 in total drug cost. In 2023, CMS named 3,459 claims across 26 drugs.
Dr. Witherell's Part D claims by kind of drug, 2024
- Generic2,038 claims55%
- Brand-name1,643 claims45%
Dr. Witherell'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. Witherell's Part D claims, 2024
- Antibiotics2%91 of 3,681 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: 3,4592024: 3,4871%
Drugs named by CMS: 28 in 2024, 26 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. John C. Witherell scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Witherell for performance year 2024, reported as part of a group. Dr. Witherell accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 455 procedures of cataract surgery by Dr. Witherell, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Witherell's MIPS scores, performance year 2024
- 87of 100Final score
- 80.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Witherell ranks in Medicare procedure volume
- Cataract surgery
- 94th percentile455 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John C. Witherell received $3,410 in industry payments from 2016 to 2025
CMS Open Payments shows 152 general payments to Dr. Witherell from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Sun Pharmaceutical Industries Inc. paid the most, $628.
General payments to Dr. Witherell by program year, 2016 to 2025
General payments to Dr. Witherell by kind, 2016 to 2025
- Food and beverage$3,37399%
- Education$381%
Companies that paid Dr. Witherell 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. John C. Witherell graduated from Jefferson Medical College of Thomas Jefferson University
Dr. Witherell graduated from Jefferson Medical College of Thomas Jefferson University in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John C. Witherell'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)Clinician Public Reporting: Overall MIPS Performance (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. John C. Witherell
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. John C. Witherell's NPI number?
Dr. John C. Witherell's NPI number is 1811984206. It was assigned on September 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John C. Witherell?
Dr. John C. Witherell is an ophthalmologist in Glen Mills, Pennsylvania. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. John C. Witherell practice?
Dr. Witherell practices at 300 Evergreen Drive, Glen Mills, PA 19342. Dr. Witherell's primary practice is ChristianaCare Surgery Center at Glen Mills in Glen Mills, Pennsylvania. Dmand AI also links Dr. Witherell to 2 medical groups and 1 group practice or clinic.
What is Dr. John C. Witherell's office phone number?
The practice phone on file for Dr. Witherell is (484) 846-5100.
What is Dr. John C. Witherell's medical license number?
Dr. Witherell holds Pennsylvania license MD060067L.
Which hospitals is Dr. John C. Witherell affiliated with?
Dr. Witherell is affiliated with Wills Eye Hospital.
Does Dr. John C. Witherell accept Medicare?
Yes. CMS data shows Dr. Witherell billed Medicare for 2,985 services in 2024, and Dr. Witherell accepts Medicare assignment.
What is Dr. John C. Witherell's MIPS score?
Dr. Witherell's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. John C. Witherell see?
CMS counts 1,155 Medicare patients who saw Dr. Witherell in 2024, with an average age of 76.
What services does Dr. John C. Witherell bill to Medicare?
In 2024, Dr. Witherell's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and ultrasound (76519).
Show 4 more questionsShow fewer questions
Where did Dr. John C. Witherell go to medical school?
Dr. Witherell graduated from Jefferson Medical College of Thomas Jefferson University in 1994.
What drugs does Dr. John C. Witherell prescribe most?
In 2024 Medicare Part D data, Dr. Witherell's most prescribed drugs by claims were Prednisolone Acetate, Latanoprost and Erythromycin.
Has Dr. John C. Witherell received payments from drug or device companies?
CMS Open Payments shows $3,410 in general payments to Dr. Witherell from 25 companies from 2016 to 2025. The largest total came from Sun Pharmaceutical Industries Inc.
How long has Dr. John C. Witherell been practicing?
Dr. Witherell graduated from medical school in 1994, 32 years ago.
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