Doctor profile · Federal record
Dr. Alexander Granok, MD
Infectious Disease Physician (CMS: Infectious Disease) · Merrimack, NH
- NPI 1427010636
- Accepts Medicare
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
399 Dw Hwy
Merrimack, NH 030544112
(603) 429-1611
fax (603) 429-1285
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- May 7, 2009
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State license (1)
- New Hampshire #11273
- Medicaid
- NH #30201524
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427010636. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,103
Distinct HCPCS
7
Medicare allowed
$98,219
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 698 | 295 | $78 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 145 | 141 | $128 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 85 | 59 | $90 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 62 | 54 | $49 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 58 | 42 | $118 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 44 | 33 | $126 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $167 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 172. This provider delivers 6.4× the peer median.Open Payments
Industry payments received
All-time total
$240
Transactions
10
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Gilead Sciences, Inc. | 3 | $80.91 | |
| ViiV Healthcare Company | 2 | $54.87 | |
| ABBVIE INC. | 2 | $47.41 | |
| Dynavax Technologies Corporation | 1 | $20.55 | |
| Insmed, Inc. | 1 | $19.40 | |
| AIMMUNE THERAPEUTICS, INC. | 1 | $17.22 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
670
Patients
126
Total drug cost
$68,140
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Vancomycin Hcl | Generic | 91 | 27 | $13,023 |
| Ceftriaxone (Ceftriaxone Sodium) | Brand | 72 | 21 | $6,168 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 65 | 19 | $1,193 |
| Rifampin | Generic | 56 | 13 | $3,117 |
| Amoxicillin | Generic | 55 | 18 | $717 |
| Doxycycline Hyclate | Generic | 52 | 16 | $2,462 |
| Ethambutol Hcl | Generic | 48 | 0 | $2,468 |
| Cephalexin | Generic | 46 | 12 | $574 |
| Azithromycin | Generic | 45 | 0 | $1,013 |
| Ertapenem (Ertapenem Sodium) | Brand | 37 | 0 | $19,030 |
Hospital affiliations
Frequently asked questions
What is Dr. Alexander Granok's medical specialty?
Dr. Alexander Granok practices Infectious Disease Physician in Merrimack, NH.
Where does Dr. Alexander Granok practice?
Dr. Alexander Granok practices at 399 Dw Hwy, Merrimack, NH 030544112. Office phone: 6034291611.
What is Dr. Alexander Granok's NPI?
Dr. Alexander Granok's National Provider Identifier (NPI) is 1427010636, issued by NPPES.
Does Dr. Alexander Granok accept Medicare assignment?
Yes. Dr. Alexander Granok accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Granok commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.