Doctor profile · Federal record

Dr. William Flannery, MD

Internal Medicine Physician (CMS: Pediatric Medicine) · Pediatrics Physician · Huntersville, NC

  • NPI 1700827086
  • Accepts Medicare
  • 33 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
16525 Holly Crest Ln Ste 150
Huntersville, NC 280784911
(704) 384-8720
fax (704) 384-8747
Additional location
17220 Northcross Dr, Suite 110
Huntersville, NC 280785085
Mailing address
Po Box 60447
Charlotte, NC 282600447

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
February 25, 2021
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
North Carolina #9700549
Medicaid (2)
NC #891043X · SC #N00549

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700827086. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,557
Distinct HCPCS
10
Medicare allowed
$143,924
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 761 289 $121
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 230 230 $122
G0008 Administration of influenza virus vaccine 82 80 $29
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 78 76 $76
83036 Hemoglobin a1c level 68 66 $9
81003 Automated urinalysis test 50 49 $2
99213 Established patient office or other outpatient visit, 20-29 minutes 49 43 $85
99421 Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 47 40 $14
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 45 39 $14
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 42 41 $7

In context: peer comparison

Among 12 peers in Huntersville Internal Medicine Physician, average services per provider: 98. This provider delivers 16× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$30
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 1 $29.86

By nature of payment

Food and Beverage
$30

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,115
Patients
861
Total drug cost
$41,823
Drug Type Claims Patients Total cost
Rosuvastatin Calcium Generic 421 116 $6,623
Atorvastatin Calcium Generic 360 102 $4,888
Levothyroxine Sodium Generic 308 85 $4,650
Amlodipine Besylate Generic 262 76 $2,293
Omeprazole Generic 224 60 $2,749
Pravastatin Sodium Generic 220 56 $3,379
Metformin Hcl ER (Metformin Hcl) Brand 197 58 $2,225
Lisinopril Generic 185 49 $1,394
Pantoprazole Sodium Generic 158 49 $2,442
Losartan Potassium Generic 154 38 $2,120

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Flannery's medical specialty?
Dr. William Flannery practices Internal Medicine Physician in Huntersville, NC.
Where does Dr. William Flannery practice?
Dr. William Flannery practices at 16525 Holly Crest Ln Ste 150, Huntersville, NC 280784911. Office phone: 7043848720.
What is Dr. William Flannery's NPI?
Dr. William Flannery's National Provider Identifier (NPI) is 1700827086, issued by NPPES.
Does Dr. William Flannery accept Medicare assignment?
Yes. Dr. William Flannery accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Flannery commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.