What is Mary Merkel's specialty?

Mary Merkel (NPI 1558375709) is a Medicare-billing provider whose primary specialty is Family Practice in Merrimack, NH.

Where does Mary Merkel practice?

Mary Merkel practices in Merrimack, NH, based on the location reported in the CMS Medicare provider datasets for NPI 1558375709.

How much does Medicare pay Mary Merkel?

Mary Merkel (NPI 1558375709) received approximately $40K in total Medicare Part B payments, serving 212 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1558375709

Mary MerkelD.O.

PRACTICEDH FAMILY MEDICINE NASHUA INCSee all providers at this practice →

Family PracticeMerrimack, NHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

443

Unique beneficiaries

—

Total services

802

Distinct HCPCS

Medicare payment

$38K

Peer benchmark

Total Medicare services vs. 441 Family Practice providers in NH — above median (cohort median 533).

PRESCRIBING · PART D · 2024

Total Rx claims

4,008

Beneficiaries

—

Total drug cost

$297K

Distinct drugs

Brand share

20.1%

Top prescribed drugs

Atorvastatin Calcium306 claims

Levothyroxine Sodium274 claims

Amlodipine Besylate173 claims

Lisinopril161 claims

Metformin Hcl137 claims

QUALITY · MIPS · 2024

Final MIPS score

79.7

Quality

53.5

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.20%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Mary Merkel's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARY HITCHCOCK MEMORIAL HOSPITAL	144	575
Daniel Abbis Diagnostic Radiology · Nashua, NH	23	45
ST JOSEPH HOSPITAL OF NASHUA NH	21	65
Susan Field Physician Assistant · Pelham, NH	17	31
KLEMENTOWICZ, PETER	11	27

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events