Doctor profile · Federal record

Dr. Mary Howerton, PA

Physician Assistant · Charleston, SC

  • NPI 1568714632
  • Accepts Medicare
  • MIPS 73.8 / 100 · 2023
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
171 Ashley Ave
Charleston, SC 294258908
(843) 792-1414
Mailing address
Po Box 751461
Charlotte, NC 282751461

Credentials & registration

NPPES · NUCC
NPI registered
October 2012 — 14 yrs on file
Profile last updated
October 22, 2020
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
South Carolina #1836

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568714632. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
494
Distinct HCPCS
8
Medicare allowed
$18,533
HCPCS Description Services Patients Avg allowed
69210 Removal of impacted ear wax 134 108 $26
92504 Exam of ear using a microscope 107 100 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 100 71 $53
99214 Established patient office or other outpatient visit, 30-39 minutes 61 57 $77
69210 Removal of impacted ear wax 32 32 $38
92504 Exam of ear using a microscope 30 29 $23
99204 New patient office or other outpatient visit, 45-59 minutes 19 19 $108
G0268 Removal of impacted cerumen (one or both ears) by physician on same date of service as audiologic function testing 11 11 $25

In context: peer comparison

Among 103 peers in this city , average services per provider: 377. This provider delivers 1.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
103
Patients
29
Total drug cost
$5,357
Drug Type Claims Patients Total cost
Triamterene-Hydrochlorothiazid (Triamterene/Hydrochlorothiazid) Brand 26 0 $263
Acetazolamide Generic 19 0 $1,249
Ofloxacin Generic 18 17 $677
Ciprofloxacin-Dexamethasone (Ciprofloxacin Hcl/Dexameth) Brand 17 12 $2,672
Diazepam Generic 12 0 $11
Dexamethasone Sodium Phosphate Generic 11 0 $485

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Howerton's medical specialty?
Dr. Mary Howerton practices Physician Assistant in Charleston, SC.
Where does Dr. Mary Howerton practice?
Dr. Mary Howerton practices at 171 Ashley Ave, Charleston, SC 294258908. Office phone: 8437921414.
What is Dr. Mary Howerton's NPI?
Dr. Mary Howerton's National Provider Identifier (NPI) is 1568714632, issued by NPPES.
Does Dr. Mary Howerton accept Medicare assignment?
Yes. Dr. Mary Howerton accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Howerton commonly perform?
Top Medicare-reported procedures in 2023: Removal of impacted ear wax (HCPCS 69210); Exam of ear using a microscope (HCPCS 92504); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.