Doctor profile · Federal record
Dr. William Duffy, MD
Internal Medicine Physician · Conshohocken, PA
- NPI 1538108055
- MIPS 86.8 / 100 · 2023
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
161 Washington St, Suite 1550
Conshohocken, PA 19428
(610) 200-0250
fax (610) 200-0253 - Mailing address
-
161 Washington St., Suite 1550
Conshohocken, PA 19428
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- March 18, 2026
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Pennsylvania #MD060436L
- Medicaid
- PA #0016035740009
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538108055. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
947
Distinct HCPCS
10
Medicare allowed
$114,806
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 335 | 169 | $135 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 125 | 88 | $189 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 102 | 76 | $95 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 100 | 100 | $137 | |
G0008 |
Administration of influenza virus vaccine | 80 | 80 | $32 | |
90662 |
Influenza vaccine split virus, preservative free | 79 | 79 | $72 | |
G0009 |
Administration of pneumococcal vaccine | 41 | 40 | $32 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 37 | 36 | $282 | |
83036 |
Hemoglobin a1c level | 24 | 15 | $10 | |
90471 |
Administration of vaccine | 12 | 12 | $22 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 83. This provider delivers 11× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,221
Patients
314
Total drug cost
$16,814
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 240 | 58 | $1,958 |
| Rosuvastatin Calcium | Generic | 141 | 37 | $3,374 |
| Atorvastatin Calcium | Generic | 132 | 38 | $1,602 |
| Levothyroxine Sodium | Generic | 107 | 30 | $1,469 |
| Losartan Potassium | Generic | 93 | 22 | $1,317 |
| Lisinopril | Generic | 74 | 20 | $856 |
| Pantoprazole Sodium | Generic | 62 | 16 | $1,239 |
| Hydrochlorothiazide | Generic | 58 | 15 | $353 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 52 | 13 | $638 |
| Metoprolol Succinate | Generic | 48 | 17 | $684 |
Frequently asked questions
What is Dr. William Duffy's medical specialty?
Dr. William Duffy practices Internal Medicine Physician in Conshohocken, PA.
Where does Dr. William Duffy practice?
Dr. William Duffy practices at 161 Washington St, Conshohocken, PA 19428. Office phone: 6102000250.
What is Dr. William Duffy's NPI?
Dr. William Duffy's National Provider Identifier (NPI) is 1538108055, issued by NPPES.
What procedures does Dr. William Duffy 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 99215); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.