What is Frederick Ruymann's specialty?

Frederick Ruymann (NPI 1568466316) is a Medicare-billing provider whose primary specialty is Gastroenterology in Cambridge, MA.

Where does Frederick Ruymann practice?

Frederick Ruymann practices in Cambridge, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1568466316.

How much does Medicare pay Frederick Ruymann?

Frederick Ruymann (NPI 1568466316) received approximately $136K in total Medicare Part B payments, serving 747 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1568466316

Frederick RuymannMD

PRACTICEMT AUBURN THERAPEUTIC ENDOSCOPYSee all providers at this practice →

GastroenterologyCambridge, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,007

Unique beneficiaries

—

Total services

1,094

Distinct HCPCS

Medicare payment

$122K

Peer benchmark

Total Medicare services vs. 483 Gastroenterology providers in MA — top quintile (cohort median 638).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$3K

Distinct drugs

Brand share

11.1%

Top prescribed drugs

Pantoprazole Sodium33 claims

Prednisone16 claims

Famotidine14 claims

Spironolactone13 claims

Omeprazole12 claims

QUALITY · MIPS · 2024

Final MIPS score

76.2

Quality

56.8

Cost

72.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Top paying entities

Food and Beverage$2K

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 220012

Hospital

CCN 220135

Hospital

REFERRAL NETWORK

Where Frederick Ruymann'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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NPI 1073504502	27	63
Michael Shortsleeve Diagnostic Radiology · Cambridge, MA	22	45
Edward Marianacci Diagnostic Radiology · Cambridge, MA	19	47
Ralph Reichle Diagnostic Radiology · Cambridge, MA	18	35
Kyle Pond Cardiology · Cambridge, MA	17	41
Philip Rogoff Diagnostic Radiology · Cambridge, MA	16	29
Leonard Zir Internal Medicine · Cambridge, MA	15	31
Donald Romanelli Diagnostic Radiology · Cambridge, MA	12	18
Stephen Ranere Internal Medicine · Cambridge, MA	12	81
Armstrong Ambulance Service Ambulance Service Provider · Arlington, MA	11	51
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	11	20

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