Doctor profile · Federal record
Dr. Gearoid McMahon, Mb BCH BAO
Nephrology Physician (CMS: Nephrology) · Boston, MA
- NPI 1992025274
- Accepts Medicare
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
75 Francis St, Mrb4
Boston, MA 021156110
(617) 732-5500
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- May 5, 2021
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Massachusetts #244817
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1992025274. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,288
Distinct HCPCS
10
Medicare allowed
$134,601
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 453 | 149 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 232 | 100 | $126 | |
90945 |
Dialysis procedure including 1 evaluation | 215 | 60 | $92 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 104 | 67 | $104 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 88 | 86 | $184 | |
90935 |
Hemodialysis procedure with physician evaluation | 75 | 41 | $76 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 30 | 29 | $138 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 23 | 23 | $142 | |
50200 |
Needle biopsy of kidney | 20 | 20 | $134 | |
36556 |
Insertion of non-tunneled central venous tube for infusion (5 years or older) | 17 | 17 | $88 |
In context: peer comparison
Among 73 peers in Boston Nephrology Physician, average services per provider: 137. This provider delivers 9.4× the peer median.Open Payments
Industry payments received
All-time total
$5
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Travere Therapeutics, INC. | 2 | $5.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
116
Patients
0
Total drug cost
$41,405
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Jardiance (Empagliflozin) | Brand | 29 | 0 | $40,439 |
| Calcitriol | Generic | 25 | 0 | $382 |
| Furosemide | Generic | 14 | 0 | $164 |
| Lisinopril | Generic | 14 | 0 | $118 |
| Amlodipine Besylate | Generic | 12 | 0 | $55 |
| Allopurinol | Generic | 11 | 0 | $103 |
| Hydrochlorothiazide | Generic | 11 | 0 | $144 |
Hospital affiliations
Frequently asked questions
What is Dr. Gearoid McMahon's medical specialty?
Dr. Gearoid McMahon practices Nephrology Physician in Boston, MA.
Where does Dr. Gearoid McMahon practice?
Dr. Gearoid McMahon practices at 75 Francis St, Boston, MA 021156110. Office phone: 6177325500.
What is Dr. Gearoid McMahon's NPI?
Dr. Gearoid McMahon's National Provider Identifier (NPI) is 1992025274, issued by NPPES.
Does Dr. Gearoid McMahon accept Medicare assignment?
Yes. Dr. Gearoid McMahon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gearoid McMahon commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Dialysis procedure including 1 evaluation (HCPCS 90945). Source: CMS Medicare Physician & Other Practitioners file.