What is Siddhartha Parker's specialty?

Siddhartha Parker (NPI 1417117532) is a Medicare-billing provider whose primary specialty is Gastroenterology in Lebanon, NH.

Where does Siddhartha Parker practice?

Siddhartha Parker practices in Lebanon, NH, based on the location reported in the CMS Medicare provider datasets for NPI 1417117532.

How much does Medicare pay Siddhartha Parker?

Siddhartha Parker (NPI 1417117532) received approximately $57K in total Medicare Part B payments, serving 339 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1417117532

Siddhartha ParkerM.D.

GastroenterologyLebanon, NHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

594

Unique beneficiaries

—

Total services

618

Distinct HCPCS

Medicare payment

$49K

Peer benchmark

Total Medicare services vs. 73 Gastroenterology providers in NH — above median (cohort median 686).

PRESCRIBING · PART D · 2024

Total Rx claims

135

Beneficiaries

—

Total drug cost

$490K

Distinct drugs

Brand share

31.1%

Top prescribed drugs

Mesalamine51 claims

Omeprazole25 claims

Ustekinumab19 claims

Colestipol Hcl17 claims

Ringer's Solution,lactated12 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 Siddhartha Parker'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). 39 inbound referrers · 59 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARY HITCHCOCK MEMORIAL HOSPITAL	391	1,985
Mikhail Lisovsky Pathology · Lebanon, NH	92	174
Arief Suriawinata Pathology · Lebanon, NH	49	88
Omer Awan Diagnostic Radiology · Baltimore, MD	43	88
Ruth Magera Diagnostic Radiology · Lebanon, NH	37	66
ANDERSON, GLEN	34	60
Steven Sargent Diagnostic Radiology · Lebanon, NH	33	58
Jon Wahrenberger Cardiology · Lebanon, NH	28	52
Armin Helisch Cardiology · Lebanon, NH	25	45
JAMES, DOUGLAS	24	33
Robert Harris Diagnostic Radiology · Los Angeles, CA	23	52
Salvatore Costa Cardiology · Lebanon, NH	23	32

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MARY HITCHCOCK MEMORIAL HOSPITAL	184	1,072
NORTHEASTERN VERMONT REGIONAL HOSPITAL INC.	92	281
Michael Tsapakos Diagnostic Radiology · Lebanon, NH	38	75
Julianna Czum Diagnostic Radiology · Baltimore, MD	36	76
BLACK, WILLIAM	34	79
Mikhail Lisovsky Pathology · Lebanon, NH	32	62
Dagmar Hoegemann Savellano Diagnostic Radiology · Burlington, VT	28	40
Ruth Magera Diagnostic Radiology · Lebanon, NH	27	59
Jason Pettus Pathology · Lebanon, NH	27	53
JAMES, DOUGLAS	25	44
Stephanie Yen Diagnostic Radiology · Lebanon, NH	24	44
Anne Silas Diagnostic Radiology · Lebanon, NH	22	37

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