What is John Witherell's specialty?

John Witherell (NPI 1811984206) is a Medicare-billing provider whose primary specialty is Ophthalmology in Chester, PA.

Where does John Witherell practice?

John Witherell practices in Chester, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1811984206.

How much does Medicare pay John Witherell?

John Witherell (NPI 1811984206) received approximately $298K in total Medicare Part B payments, serving 1,155 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1811984206

John WitherellM.D.

PRACTICEOPHTHALMIC SURGICAL ASSOCIATESSee all providers at this practice →

OphthalmologyChester, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,535

Unique beneficiaries

—

Total services

2,985

Distinct HCPCS

Medicare payment

$290K

Peer benchmark

Total Medicare services vs. 810 Ophthalmology providers in PA — above median (cohort median 1,854).

PRESCRIBING · PART D · 2024

Total Rx claims

3,487

Beneficiaries

—

Total drug cost

$434K

Distinct drugs

Brand share

34.0%

Top prescribed drugs

Prednisolone Acetate626 claims

Latanoprost618 claims

Erythromycin Base453 claims

Ciprofloxacin Hcl365 claims

Brimonidine Tartrate183 claims

QUALITY · MIPS · 2024

Final MIPS score

87.3

Quality

80.8

Cost

76.9

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.52%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$649

Payment records

By payment type

Food and Beverage$649

Top paying entities

Food and Beverage$649

REFERRAL NETWORK

Where John Witherell's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 24 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CROZER-CHESTER MEDICAL CENTER	368	1,363
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	93	211
MORRISON, KEVIN	72	228
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	67	197
RIDDLE MEMORIAL HOSPITAL	51	110
Cynthia Foore Certified Registered Nurse Anesthetist (CRNA) · Chester, PA	33	94
Anuj Prasad Internal Medicine · Glen Mills, PA	19	91
NOLEN-WALSTON, ALICE	19	59
Vera Howland Internal Medicine · Chester, PA	17	100
DOMBKOSKI, RUTH	16	40
Desiree Zanghi Certified Registered Nurse Anesthetist (CRNA) · Chester, PA	16	56
Meena Raman Anesthesiology · Upland, PA	16	51

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history