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Marylou Romo-Gritzewsky, M.D.

NPI 1790795730ActiveIndividual· Internal Medicine· Freedom, CA

Internal Medicine (M.D.) with Monterey Hospitalist Medical Group and 2 other groups, practicing in Freedom, California. Their prescriptions cost Medicare Part D more than their services did: $1,671,961 for 12,609 claims, against $505,416 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 19 companies reporting payments in 2025, $2,420 in all, mostly food and beverage. Lists Community Hospital of the Monterey Peninsula and 3 other hospitals as hospital affiliations.

Overview

NPI1790795730
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 9, 2006
Last updated in NPPESOct 21, 2026
Certified by providerOct 21, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA76531CA
Hospitalist208M00000XA76531CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Hospitalist (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,187
Services billed8,115 across 62 procedure codes
Paid by Medicare$505,416

Part D prescriptions in 2024

Prescriptions (claims)12,609 · 22,979 30-day fills
Patients819
Total drug cost$1,671,961
Generic share80% of claims

Medicare sources and data years

Education and affiliations

Graduation year1994
Medicare specialtyHospitalist
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,420 · 126 payments from 19 companies
  • 2024$3,321 · 188 payments from 21 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$2,420 · 126 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Internal Medicine providers in Freedom

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