What is Deirdre Heersink's specialty?

Deirdre Heersink (NPI 1417157298) is a Medicare-billing provider whose primary specialty is Geriatric Medicine in Topsham, ME.

Where does Deirdre Heersink practice?

Deirdre Heersink practices in Topsham, ME, based on the location reported in the CMS Medicare provider datasets for NPI 1417157298.

How much does Medicare pay Deirdre Heersink?

Deirdre Heersink (NPI 1417157298) received approximately $39K in total Medicare Part B payments, serving 185 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1417157298

Deirdre HeersinkDO

Geriatric MedicineTopsham, MEI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

238

Unique beneficiaries

—

Total services

377

Distinct HCPCS

Medicare payment

$29K

Peer benchmark

Total Medicare services vs. 19 Geriatric Medicine providers in ME — above median (cohort median 447).

PRESCRIBING · PART D · 2024

Total Rx claims

9,613

Beneficiaries

—

Total drug cost

$788K

Distinct drugs

157

Brand share

25.0%

Top prescribed drugs

Levothyroxine Sodium587 claims

Apixaban577 claims

Atorvastatin Calcium517 claims

Sertraline Hcl388 claims

Furosemide360 claims

QUALITY · MIPS · 2024

Final MIPS score

86.2

Quality

75.4

Cost

75.3

Improvement activities

40.0

Promoting interop.

84.0

Payment adjustment

0.47%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Deirdre Heersink'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). 11 inbound referrers · 20 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Eric Stram Diagnostic Radiology · Augusta, ME	30	73
RAQUE, JAMES	23	50
Paul Hyman Internal Medicine · Brunswick, ME	21	99
Lakshman Subrahmanyan Cardiology · Lebanon, NH	19	36
Joseph Laverdiere Diagnostic Radiology · Augusta, ME	18	40
Jaime Kline Diagnostic Radiology · Brunswick, ME	17	52
Daniel Hammond Hospitalist · Augusta, ME	17	29
Heinrich Grube Cardiology · Augusta, ME	16	39
Keith Fleming Diagnostic Radiology · Brunswick, ME	15	42
Christopher Mahoney Diagnostic Radiology · Augusta, ME	15	35
Michael Badmaev Hospitalist · Concord, NH	13	25

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MAINEHEALTH	97	952
MAINEGENERAL MEDICAL CENTER	72	273
Delta Ambulance Corp. Ambulance Service Provider · Waterville, ME	35	78
WEST, LESLEY	24	44
Jaime Kline Diagnostic Radiology · Brunswick, ME	21	61
Christopher Mahoney Diagnostic Radiology · Augusta, ME	18	34
Zaki Nashed Diagnostic Radiology · Waterville, ME	17	35
RAQUE, JAMES	17	40
HALLENBECK, JONATHAN	17	45
Jarrod Ferrara Cardiology · Augusta, ME	17	32
MAINEGENERAL HEALTH	16	24
David Frost Cardiology · Augusta, ME	16	34

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