What is Mark Diehl's specialty?

Mark Diehl (NPI 1982667754) is a Medicare-billing provider whose primary specialty is Rheumatology in Gettysburg, PA.

Where does Mark Diehl practice?

Mark Diehl practices in Gettysburg, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1982667754.

How much does Medicare pay Mark Diehl?

Mark Diehl (NPI 1982667754) received approximately $388K in total Medicare Part B payments, serving 584 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1982667754

Mark DiehlDO

RheumatologyGettysburg, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

952

Unique beneficiaries

—

Total services

11,174

Distinct HCPCS

Medicare payment

$271K

Peer benchmark

Total Medicare services vs. 267 Rheumatology providers in PA — above median (cohort median 4,116).

PRESCRIBING · PART D · 2024

Total Rx claims

4,374

Beneficiaries

—

Total drug cost

$5.0M

Distinct drugs

Brand share

32.4%

Top prescribed drugs

Prednisone991 claims

Hydroxychloroquine Sulfate644 claims

Methotrexate Sodium642 claims

Sulfasalazine379 claims

Leflunomide279 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$12K

Payment records

By payment type

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$11K

Food and Beverage$587

Consulting Fee$483

Travel and Lodging$257

Education$55

Top paying entities

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$11K

Food and Beverage$587

Consulting Fee$483

Travel and Lodging$257

Education$55

REFERRAL NETWORK

Where Mark Diehl'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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
THE GETTYSBURG HOSPITAL	241	1,048
RAHMAN, RUKHSANA	35	76
YORK HOSPITAL	35	67
Amy-Beth Garazo Diagnostic Radiology · Gettysburg, PA	31	59
ARMAH, KWASI	29	44
SPAGNOLI, MARIE	22	38
NPI 1316996598	14	32
SIVENDRAN, THARMALINGAM	11	18

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events