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DR. CHARLES FREDERICK GREER MD
NPI 1003825878
Radiology - Diagnostic Radiology in Sullivans Island, SC

Active since August 07, 2006PECOS Enrolled
2808 ATLANTIC AVE, SULLIVANS ISLAND, SC 29482(843) 729-4525 Get Directions Write a Review

NPPES record last updated: March 25, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 25, 2026, Dec 4, 2025 (2 updates tracked since 2025).

About Dr. Charles Frederick Greer Md NPPES

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

DR. CHARLES FREDERICK GREER MD (NPI 1003825878) is an individual diagnostic radiology provider in Sullivans Island, South Carolina, licensed in South Carolina (MD10345) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Knoxville, and is a graduate of Medical University Of South Carolina College Of Medicine (1980).

NPPES Registry Identity

NPI1003825878
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. CHARLES FREDERICK GREERCredential: MD
Location Address2808 ATLANTIC AVESullivans Island, SC 29482-9660
Mailing Address2808 Atlantic AveSullivans Island, SC 29482-9660 · (843) 729-4525
Phone(843) 729-4525
Sole ProprietorYes
Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 1980
Enumeration DateAugust 7, 2006
Last NPPES UpdateMarch 25, 20262 updates tracked since enumeration
NPPES CertifiedMarch 25, 2026
✔ NPI 1003825878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 6

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in SC · MD10345
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedRadiology · Body ImagingTaxonomy 2085B0100X · License MD10345 (SC)
Also ListedRadiology · Nuclear RadiologyTaxonomy 2085N0904X · License MD10345 (SC)
Also ListedRadiology · Pediatric RadiologyTaxonomy 2085P0229X · License MD10345 (SC)
Also ListedRadiology · Vascular & Interventional RadiologyTaxonomy 2085R0204X · License MD10345 (SC), 76724 (TN)
Also ListedRadiology · Diagnostic UltrasoundTaxonomy 2085U0001X · License MD10345 (SC)
2808 ATLANTIC AVE, Sullivans Island, SC 29482
Open in Google Maps ↗

Secondary Practice Location 1

Location 17211 Wellington Dr Ste 101Knoxville, TN 37919-5968 · Phone (865) 588-8005 · Fax (865) 588-7716

Other Identifiers 4

Medicaid103453SC
Other8683SC · Medicare Group
Other405486923SC · Bcbs
Other1709SC · Medicare Group

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Charles Frederick Greer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3274573852
PECOS Enrollment IDI20050504000153, I20260408001905
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

5

Medicare enrollment records show Charles Greer reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Charleston Radiologists PA
3.8 mi
Diagnostic Radiology
1241 WOODLAND AVENUE
Mount Pleasant, SC 29464
  • Reassigned Medicare billing, South Carolina enrollment
  • 34 clinicians in this Medicare group
NPI 1811000177 (843) 824-0606
Colonial Family Practice - Manning
67 mi
Family Medicine
1036 PROFESSIONAL CT
Manning, SC 29102
  • Reassigned Medicare billing, South Carolina enrollment
  • Medicare enrollment name: Colonial Family Practice LLC
  • 82 clinicians in this Medicare group
NPI 1689006652 (803) 773-5227
Hartsville Medical Group LLC
110 mi
Internal Medicine
701 MEDICAL PARK DR
Hartsville, SC 29550
  • Reassigned Medicare billing, South Carolina enrollment
  • 116 clinicians in this Medicare group
NPI 1598995300 (843) 383-5191
Wilmington Health PLLC
147 mi
Multi-Specialty
1202 MEDICAL CENTER DR
Wilmington, NC 28401
  • Reassigned Medicare billing, North Carolina enrollment
  • 444 clinicians in this Medicare group
NPI 1881632339 (910) 341-3300
Summit Medical Group, PLLC
289 mi
Family Medicine
1404 TUSCULUM BLVD STE 3000
Greeneville, TN 37745
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,003 clinicians in this Medicare group
NPI 1922318120 (423) 638-1188

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29482 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
$67.12 typical visit price
range $16.96 – $133.52
Typical copayment $16.78 (range $4.24 – $33.38)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques
Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…
100%443 patients
Radiology: Stenosis Measurement in Carotid Imaging Reports
Percentage of final reports for carotid imaging studies (neck magnetic resonance angiography [MRA], neck computed tomography angiography [CTA], neck duplex ultrasound, carotid angiogram) performed that include direct or indirect reference to measurements of…
100%43 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Charles Greer's NPI number?

The NPI number for Charles Greer is 1003825878. It was assigned to this individual provider in the NPPES registry on August 7, 2006.

Where is Charles Greer located?

Charles Greer practices at 2808 Atlantic Ave, Sullivans Island, SC 29482. The listed phone number is (843) 729-4525.

What is Charles Greer's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Charles Greer enrolled in Medicare?

Yes. Charles Greer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Charles Greer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Greer reassigns Medicare benefits to 5 organizations: Charleston Radiologists PA (Mount Pleasant, SC), Colonial Family Practice - Manning (Manning, SC), Hartsville Medical Group LLC (Hartsville, SC), Wilmington Health PLLC (Wilmington, NC) and Summit Medical Group, PLLC (Greeneville, TN). 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 Charles Greer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Charles Greer accept?

Health plans from Cigna Healthcare list Charles Greer 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 Charles Greer was last updated on March 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.