Doctor profile · Federal record

Dr. William Greer, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Paoli, PA

  • NPI 1598722472
  • Accepts Medicare
  • 33 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
21 Industrial Blvd, Suite 200
Paoli, PA 193011610
(610) 651-0370
fax (610) 651-7758

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
September 12, 2008
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Pennsylvania #MD056544L

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598722472. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,078
Distinct HCPCS
10
Medicare allowed
$507,531
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,740 624 $133
99213 Established patient office or other outpatient visit, 20-29 minutes 772 318 $94
99497 Advance care planning, first 30 minutes 478 477 $85
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 463 463 $134
G0444 Annual depression screening, 5 to 15 minutes 436 436 $19
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 364 106 $81
G0008 Administration of influenza virus vaccine 252 249 $29
90662 Influenza vaccine split virus, preservative free 249 247 $72
99239 Hospital discharge day management, more than 30 minutes 111 93 $117
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 43 39 $54

In context: peer comparison

Among 18 peers in this city , average services per provider: 161. This provider delivers 32× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,484
Patients
961
Total drug cost
$154,066
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 679 189 $8,760
Amlodipine Besylate Generic 376 98 $3,477
Losartan Potassium Generic 365 98 $4,480
Levothyroxine Sodium Generic 247 64 $4,317
Simvastatin Generic 243 67 $2,486
Lisinopril Generic 222 61 $2,870
Metoprolol Succinate Generic 208 58 $4,076
Hydrochlorothiazide Generic 200 59 $1,274
Rosuvastatin Calcium Generic 171 50 $4,357
Pantoprazole Sodium Generic 157 58 $3,131

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Greer's medical specialty?
Dr. William Greer practices Internal Medicine Physician in Paoli, PA.
Where does Dr. William Greer practice?
Dr. William Greer practices at 21 Industrial Blvd, Paoli, PA 193011610. Office phone: 6106510370.
What is Dr. William Greer's NPI?
Dr. William Greer's National Provider Identifier (NPI) is 1598722472, issued by NPPES.
Does Dr. William Greer accept Medicare assignment?
Yes. Dr. William Greer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Greer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.