What is Mary Ellen Williams's specialty?

Mary Ellen Williams (NPI 1093855793) is a Medicare-billing provider whose primary specialty is Family Practice in Whitehall, PA.

Where does Mary Ellen Williams practice?

Mary Ellen Williams practices in Whitehall, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1093855793.

How much does Medicare pay Mary Ellen Williams?

Mary Ellen Williams (NPI 1093855793) received approximately $37K in total Medicare Part B payments, serving 235 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1093855793

Mary Ellen WilliamsD.O.

Family PracticeWhitehall, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

439

Unique beneficiaries

—

Total services

477

Distinct HCPCS

Medicare payment

$32K

Peer benchmark

Total Medicare services vs. 4,194 Family Practice providers in PA — below median (cohort median 645).

PRESCRIBING · PART D · 2024

Total Rx claims

2,085

Beneficiaries

—

Total drug cost

$88K

Distinct drugs

Brand share

14.4%

Top prescribed drugs

Lisinopril173 claims

Levothyroxine Sodium168 claims

Amlodipine Besylate158 claims

Atorvastatin Calcium95 claims

Alprazolam92 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 390133

Hospital

REFERRAL NETWORK

Where Mary Ellen Williams'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). 8 inbound referrers · 17 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
LEHIGH VALLEY HOSPITAL	78	153
ST LUKES HOSPITAL	70	172
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	39	69
GOOD SHEPHERD REHABILITATION HOSPITAL	26	71
Joseph Daday Family Practice · Wind Gap, PA	25	66
Stacy Ziskowski Podiatry · Philadelphia, PA	22	59
BISIO, PAUL	20	103
CH HOSPITAL OF ALLENTOWN, LLC	19	67

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Health Network Laboratories, Llc Clinical Laboratory · Allentown, PA	93	250
LEHIGH VALLEY HOSPITAL	89	174
ST LUKE'S HOSPITAL	86	275
ST LUKES HOSPITAL	81	230
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	35	56
Joseph Daday Family Practice · Wind Gap, PA	31	106
BISIO, PAUL	30	122
ST LUKES QUAKERTOWN HOSPITAL	26	50
GOOD SHEPHERD REHABILITATION HOSPITAL	24	77
CH HOSPITAL OF ALLENTOWN, LLC	23	68
Upper Saucon Amb Corp Ambulance Service Provider · Center Valley, PA	22	43
Stacy Ziskowski Podiatry · Philadelphia, PA	20	57

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events