Doctor profile · Federal record
Dr. Margaret Duffy, MD
Nephrology Physician (CMS: Nephrology) · Allentown, PA
- NPI 1518233881
- Accepts Medicare
- 14 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1230 S Cedar Crest Blvd Stes 301, 302, 304
Allentown, PA 181036212
(610) 432-4529
fax (610) 432-2206 - Mailing address
-
1230 S Cedar Crest Blvd Ste 301
Allentown, PA 181036212
Credentials & registration
- NPI registered
- March 2012 — 14 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Pennsylvania #MD461963
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518233881. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,179
Distinct HCPCS
10
Medicare allowed
$94,685
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 435 | 180 | $76 | |
Q5106 |
Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 247 | 14 | $7 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 165 | 117 | $97 | |
90935 |
Hemodialysis procedure with physician evaluation | 112 | 57 | $69 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 69 | 68 | $125 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 45 | 11 | $346 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $158 | |
96372 |
Injection of drug or substance under skin or into muscle | 24 | 15 | $13 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 22 | $167 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 21 | 21 | $83 |
In context: peer comparison
Among 17 peers in this city , average services per provider: 134. This provider delivers 8.8× the peer median.Open Payments
Industry payments received
All-time total
$266
Transactions
4
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Aurinia Pharma U.S., Inc. | 1 | $124.80 | |
| Amgen Inc. | 1 | $124.74 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 1 | $16.52 | |
| Travere Therapeutics, Inc. | 1 | $0.37 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
682
Patients
182
Total drug cost
$85,825
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Losartan Potassium | Generic | 124 | 38 | $1,782 |
| Amlodipine Besylate | Generic | 68 | 28 | $703 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 58 | 15 | $59,116 |
| Torsemide | Generic | 56 | 19 | $1,252 |
| Carvedilol | Generic | 46 | 12 | $433 |
| Lisinopril | Generic | 46 | 16 | $647 |
| Spironolactone | Generic | 44 | 16 | $496 |
| Furosemide | Generic | 39 | 12 | $472 |
| Allopurinol | Generic | 38 | 0 | $509 |
| Calcium Acetate | Generic | 37 | 12 | $5,082 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Duffy's medical specialty?
Dr. Margaret Duffy practices Nephrology Physician in Allentown, PA.
Where does Dr. Margaret Duffy practice?
Dr. Margaret Duffy practices at 1230 S Cedar Crest Blvd Stes 301, 302, 304, Allentown, PA 181036212. Office phone: 6104324529.
What is Dr. Margaret Duffy's NPI?
Dr. Margaret Duffy's National Provider Identifier (NPI) is 1518233881, issued by NPPES.
Does Dr. Margaret Duffy accept Medicare assignment?
Yes. Dr. Margaret Duffy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Duffy commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (HCPCS Q5106); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.