John Witherell, M.D.
NPI 1811984206 · Ophthalmology Physician · Chester, PA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Witherell, M.D. is a Ophthalmology Physician provider in Chester, PA (NPI 1811984206).
Provider details
- NPI number
- 1811984206
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD060067L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,985 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 887 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 536 | $93 |
| Ultrasound Scan to Determine Eye Length and Lens Power76519 | 240 | $69 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 218 | $537 |
| Exam of Visual Field With Extended Testing92083 | 196 | $64 |
| Imaging of Optic Nerve92133 | 185 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 626 | 411 |
| Latanoprost | 618 | 195 |
| Erythromycin Basebrand: Erythromycin | 453 | 249 |
| Ciprofloxacin Hcl | 365 | 270 |
| Brimonidine Tartrate | 183 | 60 |
| Cyclosporinebrand: Restasis | 150 | 66 |
| Timolol Maleate | 142 | 53 |
| Dorzolamide Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$649 across 26 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-30
- Last updated
- 2020-11-01
- Certified
- 2020-11-01
Frequently asked questions
- What is John Witherell's NPI number?
- John Witherell's National Provider Identifier (NPI) is 1811984206, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Witherell's specialty?
- John Witherell is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Witherell located?
- John Witherell's practice location on file with NPPES is 30 Medical Center Blvd Ste 104, Chester, PA 19013-3955.
- What is John Witherell's phone number?
- The practice phone number listed in the NPPES registry for John Witherell is (610) 874-5261.
- Does John Witherell accept Medicare?
- John Witherell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Witherell's NPI active?
- Yes — John Witherell's NPI (1811984206) is active in the NPPES registry as of the last update on 2020-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.