What is Mack Erwin's specialty?

Mack Erwin (NPI 1386617090) is a Medicare-billing provider whose primary specialty is Physician Assistant in Charlotte, NC.

Where does Mack Erwin practice?

Mack Erwin practices in Charlotte, NC, based on the location reported in the CMS Medicare provider datasets for NPI 1386617090.

How much does Medicare pay Mack Erwin?

Mack Erwin (NPI 1386617090) received approximately $6K in total Medicare Part B payments, serving 42 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1386617090

Mack ErwinPA-C

Physician AssistantCharlotte, NCI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 6,303 Physician Assistant providers in NC — bottom quintile (cohort median 290).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Mack Erwin'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). 6 inbound referrers · 7 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
THE PRESBYTERIAN HOSPITAL	62	79
Amishi Shah Psychiatry · Charlotte, NC	23	43
Mecklenburg Emergency Medical Services Agency Ambulance Service Provider · Charlotte, NC	19	35
John Kershner Physician Assistant · Charlotte, NC	18	29
Marquita Boggess Nurse Practitioner · Charlotte, NC	16	21
Khoa Tran Psychiatry · Roanoke, VA	13	16

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Greg Clary Psychiatry · High Point, NC	29	102
Eric Semeko Psychiatry · Charlotte, NC	26	64
John Kershner Physician Assistant · Charlotte, NC	17	45
THE PRESBYTERIAN HOSPITAL	16	33
Amishi Shah Psychiatry · Charlotte, NC	13	23
CAROLINAS MEDICAL CENTER	13	19
BLIEK, JACOBUS	11	27

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