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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.

KATHERINE C PROFFER FNP
NPI 1225420466
Nurse Practitioner - Family in Mount Pleasant, SC

Active since February 25, 2015PECOS EnrolledAccepts Medicare Assignment
1101 GREYTHORNE DR, MOUNT PLEASANT, SC 29466(864) 686-6163(864) 686-6166 Get Directions Write a Review

NPPES record last updated: August 31, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 31, 2026, Nov 24, 2025, May 9, 2016 and 3 more (6 updates tracked since 2015).

About Katherine C Proffer Fnp NPPES

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

KATHERINE C PROFFER FNP (NPI 1225420466) is an individual family provider in Mount Pleasant, South Carolina, licensed in South Carolina (19313) and active in the NPI registry since February 2015. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1225420466
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATHERINE C PROFFERCredential: FNP
Location Address1101 GREYTHORNE DRMount Pleasant, SC 29466-6332
Mailing AddressPo Box 751649Charlotte, NC 28275-1649 · (888) 472-0043 · Fax (843) 724-2440
Phone(864) 686-6163
Fax(864) 686-6166
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateFebruary 25, 2015
Last NPPES UpdateAugust 31, 20266 updates tracked since enumeration
NPPES CertifiedAugust 31, 2026
✔ NPI 1225420466 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in SC · 19313
1101 GREYTHORNE DR, Mount Pleasant, SC 29466
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1360 N Irby StFlorence, SC 29501-2808 · Phone (843) 667-9414 · Fax (843) 667-1362
Location 24278 Ladson RdLadson, SC 29456-5452 · Phone (843) 203-2240 · Fax (843) 203-2241

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katherine C Proffer Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416267620
PECOS Enrollment IDI20151029002944
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.

Medicare Billing Reassignments

6

Medicare enrollment records show Katherine Proffer reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Roper Saint Francis Physicians Network
0.4 mi
Urology
3510 HIGHWAY 17 N, SUITE 325
Mt Pleasant, SC 29466
  • Reassigned Medicare billing, South Carolina enrollment
  • 658 clinicians in this Medicare group
NPI 1043556368 (843) 884-8045
Palmetto Primary Care Physicians, LLC
4.1 mi
Family Medicine
1200 TWO ISLAND CT UNIT E
Mt Pleasant, SC 29466
  • Reassigned Medicare billing, South Carolina enrollment
  • 290 clinicians in this Medicare group
NPI 1841801149 (854) 444-7676
Fetter Health Care Network, Inc.
11 mi
Federally Qualified Health Center (FQHC)
51 NASSAU ST
Charleston, SC 29403
NPI 1003827304 (843) 722-4112
Lowcountry Urgent Care LLC
60 mi
Primary Care
182C SEA ISLAND PKWY
Beaufort, SC 29907
  • Reassigned Medicare billing, South Carolina enrollment
  • 200 clinicians in this Medicare group
NPI 1326364100 (843) 322-1933
Wal-Mart Stores East, LP
83 mi
Nurse Practitioner
1283 BROAD ST
Sumter, SC 29150
  • Reassigned Medicare billing, South Carolina enrollment
  • 13 clinicians in this Medicare group
NPI 1114332665 (803) 905-5528
Prisma Health Urgent Care Of South Carolina, PC
199 mi
Urgent Care
905 VERDAE BLVD STE 101
Greenville, SC 29607
  • Reassigned Medicare billing, South Carolina enrollment
  • 160 clinicians in this Medicare group
NPI 1851000855 (864) 990-1910

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
250 services24 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
136 services125 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
106 services52 patients
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811
This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.
89 services84 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
83 services83 patients
Injection, ketorolac tromethamine, per 15 mg J1885
Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.
62 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29466 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
$83.18 typical visit price
range $53.57 – $163.84
Typical copayment $20.79 (range $13.39 – $40.96)
Most-billed visit code 99203
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.

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 Katherine Proffer's NPI number?

The NPI number for Katherine Proffer is 1225420466. It was assigned to this individual provider in the NPPES registry on February 25, 2015.

Where is Katherine Proffer located?

Katherine Proffer practices at 1101 Greythorne Dr, Mount Pleasant, SC 29466. The listed phone number is (864) 686-6163.

What is Katherine Proffer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Katherine Proffer enrolled in Medicare?

Yes. Katherine Proffer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Katherine Proffer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Proffer reassigns Medicare benefits to 6 organizations: Roper Saint Francis Physicians Network (Mt Pleasant, SC), Palmetto Primary Care Physicians, LLC (Mt Pleasant, SC), Fetter Health Care Network, Inc. (Charleston, SC), Lowcountry Urgent Care LLC (Beaufort, SC), Wal-Mart Stores East, LP (Sumter, SC) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Proffer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Proffer accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina and First Choice Next list Katherine Proffer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Katherine Proffer was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 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.