Doctor profile · Federal record
Dr. Mary Merkel, D.O.
Family Medicine Physician (CMS: Family Practice) · Merrimack, NH
- NPI 1558375709
- Accepts Medicare
- MIPS 69.4 / 100 · 2023
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
294 Daniel Webster Hwy
Merrimack, NH 030544474
(603) 424-4713
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- July 21, 2011
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- New Hampshire #11669
- Medicaid
- NH #30222163
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558375709. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
505
Distinct HCPCS
6
Medicare allowed
$54,654
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 331 | 146 | $113 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 105 | 76 | $77 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 26 | 26 | $132 | |
99495 |
Transitional care management services for problem of at least moderate complexity | 18 | 17 | $164 | |
G0438 |
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 14 | 14 | $169 | |
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 | 11 | 11 | $53 |
In context: peer comparison
Among 7 peers in Merrimack Family Medicine Physician, average services per provider: 85. This provider delivers 5.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,889
Patients
540
Total drug cost
$30,645
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 245 | 83 | $3,754 |
| Levothyroxine Sodium | Generic | 239 | 67 | $4,087 |
| Lisinopril | Generic | 197 | 54 | $1,875 |
| Amlodipine Besylate | Generic | 156 | 44 | $1,127 |
| Lorazepam | Generic | 147 | 34 | $861 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 126 | 35 | $1,641 |
| Omeprazole | Generic | 113 | 37 | $1,434 |
| Metoprolol Succinate | Generic | 108 | 31 | $2,150 |
| Hydrochlorothiazide | Generic | 97 | 29 | $329 |
| Gabapentin | Generic | 92 | 21 | $2,706 |
Frequently asked questions
What is Dr. Mary Merkel's medical specialty?
Dr. Mary Merkel practices Family Medicine Physician in Merrimack, NH.
Where does Dr. Mary Merkel practice?
Dr. Mary Merkel practices at 294 Daniel Webster Hwy, Merrimack, NH 030544474. Office phone: 6034244713.
What is Dr. Mary Merkel's NPI?
Dr. Mary Merkel's National Provider Identifier (NPI) is 1558375709, issued by NPPES.
Does Dr. Mary Merkel accept Medicare assignment?
Yes. Dr. Mary Merkel accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Merkel 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); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.