1. Home
  2. Directory
  3. South Carolina
  4. Charleston
  5. Internal Medicine
  6. NPI Profile

REAGAN LEANN FARMER MD
NPI 1255034377
Internal Medicine in Charleston, SC

Active since March 27, 2023PECOS Enrolled
316 CALHOUN ST, CHARLESTON, SC 29401(843) 724-2450(843) 724-2455 Get Directions Write a Review

NPPES record last updated: June 2, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 2, 2026, Mar 27, 2023 (2 updates tracked since 2023).

About Reagan Leann Farmer Md NPPES

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

REAGAN LEANN FARMER MD (NPI 1255034377) is an individual internal medicine provider in Charleston, South Carolina, licensed in South Carolina (96572) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS and is a graduate of University Of South Carolina School Of Medicine (2023).

NPPES Registry Identity

NPI1255034377
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameREAGAN LEANN FARMERCredential: MD
Location Address316 CALHOUN STCharleston, SC 29401-1125
Mailing Address316 Calhoun StCharleston, SC 29401-1125 · (843) 724-2000
Phone(843) 724-2450
Fax(843) 724-2455
Sole ProprietorNo
Medical School CMSUniversity Of South Carolina School Of MedicineGraduated 2023
Enumeration DateMarch 27, 2023
Last NPPES UpdateJune 2, 20262 updates tracked since enumeration
NPPES CertifiedJune 2, 2026
✔ NPI 1255034377 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in SC · 96572
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.
316 CALHOUN ST, Charleston, SC 29401
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Reagan Leann Farmer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5890154835
PECOS Enrollment IDI20260409003862
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 29401 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
$124.04 typical visit price
range $53.57 – $163.84
Typical copayment $31.01 (range $13.39 – $40.96)
Most-billed visit code 99204
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
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.

CHRISTIAN ANTON SUNG PA-C
Physician Assistant
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 720-8490
AMY LYNN CANINO PA-C
Physician Assistant
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 402-1638
KAREN L SPODAREK D.O.
Radiology (Diagnostic Radiology)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2154
JOHNNY PHILLIPS CAMPBELL MD
Radiology (Diagnostic Radiology)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2988
RONA S CUSHMAN NNP
Nurse Practitioner (Neonatal, Critical Care)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 402-1638
ROPER SAINT FRANCIS PHYSICIANS NETWORK
Internal Medicine
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2450
MRS. ALISON MARIE BONDELL APRN
Nurse Practitioner (Acute Care)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2450
MRS. DEBORAH LYNN WALKER AGACNP-BC
Nurse Practitioner (Acute Care)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2450

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 Reagan Farmer's NPI number?

The NPI number for Reagan Farmer is 1255034377. It was assigned to this individual provider in the NPPES registry on March 27, 2023.

Where is Reagan Farmer located?

Reagan Farmer practices at 316 Calhoun St, Charleston, SC 29401. The listed phone number is (843) 724-2450.

What is Reagan Farmer's specialty?

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

Is Reagan Farmer enrolled in Medicare?

Yes. Reagan Farmer is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Reagan Farmer was last updated on June 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.