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COLIN MACKAY MD
NPI 1912683087
Internal Medicine in Evansville, IN

Active since June 23, 2023PECOS Enrolled
3700 WASHINGTON AVE, EVANSVILLE, IN 47714(812) 485-4000 Get Directions Write a Review

NPPES record last updated: June 26, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 26, 2025, Jun 23, 2023 (2 updates tracked since 2023).

About Colin Mackay Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

COLIN MACKAY MD (NPI 1912683087) is an individual internal medicine provider in Evansville, Indiana, licensed in Indiana (11023241A) and active in the NPI registry since June 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1912683087
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameCOLIN MACKAYCredential: MD
Location Address3700 WASHINGTON AVEEvansville, IN 47714-0541
Mailing Address5445 Garden Ct Apt 1bEvansville, IN 47715-5016
Phone(812) 485-4000
Sole ProprietorNo
Enumeration DateJune 23, 2023
Last NPPES UpdateJune 26, 20252 updates tracked since enumeration
NPPES CertifiedJune 26, 2025
✔ NPI 1912683087 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IN · 11023241A
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3700 WASHINGTON AVE, Evansville, IN 47714
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Colin Mackay Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 47714 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ST. MARY'S HEALTH, INC.
Durable Medical Equipment & Medical Supplies
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 485-7623
KELLI ROBERTSON
Dietitian, Registered
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 485-4098
MADYSON BLAIRE FIETH
Registered Nurse (Medical-Surgical)
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 485-4000
KELSEY COX DPT, NCS
Physical Therapist
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 106-1709
CEP AMERICA - NEUROLOGY PC
Psychiatry & Neurology (Neurology)
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 484-4000
PROF. NANNETTE STUMP PHD, HSPP
Psychologist
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 485-5612
SARAH MILLER M.S., CF-SLP
Speech-Language Pathologist
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 485-4525
BRANDY DAWN HARPENAU OT
Occupational Therapist
3700 WASHINGTON AVE
EVANSVILLE, IN 47714
Vanderburgh County (812) 485-5621

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Colin Mackay's NPI number?

The NPI number for Colin Mackay is 1912683087. It was assigned to this individual provider in the NPPES registry on June 23, 2023.

Where is Colin Mackay located?

Colin Mackay practices at 3700 Washington Ave, Evansville, IN 47714. The listed phone number is (812) 485-4000.

What is Colin Mackay's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Colin Mackay enrolled in Medicare?

Yes. Colin Mackay is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Colin Mackay was last updated on June 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.