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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. NICHOLAS ALEXANDER CLOUGH MD
NPI 1639828635
Internal Medicine in Evansville, IN

Active since March 18, 2022PECOS Enrolled
3700 WASHINGTON AVE, EVANSVILLE, IN 47714(812) 485-4000 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Nov 18, 2025, Aug 22, 2022 and 1 more (4 updates tracked since 2022).

About Dr. Nicholas Alexander Clough Md NPPES

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

DR. NICHOLAS ALEXANDER CLOUGH MD (NPI 1639828635) is an individual internal medicine provider in Evansville, Indiana, licensed in Indiana (01100194A) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639828635
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. NICHOLAS ALEXANDER CLOUGHCredential: MD
Location Address3700 WASHINGTON AVEEvansville, IN 47714-0541
Mailing Address801 Saint Marys Dr Ste 510Evansville, IN 47714-0511 · (812) 485-4423 · Fax (812) 485-7222
Phone(812) 485-4000
Sole ProprietorNo
Enumeration DateMarch 18, 2022
Last NPPES UpdateJuly 13, 20264 updates tracked since enumeration
NPPES CertifiedJuly 13, 2026
✔ NPI 1639828635 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IN · 01100194A
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.
3700 WASHINGTON AVE, Evansville, IN 47714
Open in Google Maps ↗

Other Identifiers 1

Other11022270AIN · Post-graduate Training Permit

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Nicholas Alexander Clough 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 Nicholas Clough's NPI number?

The NPI number for Nicholas Clough is 1639828635. It was assigned to this individual provider in the NPPES registry on March 18, 2022.

Where is Nicholas Clough located?

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

What is Nicholas Clough's specialty?

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

Is Nicholas Clough enrolled in Medicare?

Yes. Nicholas Clough is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Nicholas Clough was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.