What is Ana Montoya's specialty?

Ana Montoya (NPI 1902821994) is a Medicare-billing provider whose primary specialty is Geriatric Medicine in Ann Arbor, MI.

Where does Ana Montoya practice?

Ana Montoya practices in Ann Arbor, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1902821994.

How much does Medicare pay Ana Montoya?

Ana Montoya (NPI 1902821994) received approximately $6K in total Medicare Part B payments, serving 32 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1902821994

Ana MontoyaMD

PRACTICEUNIVERSITY OF MICHIGAN HEALTH SYSTEMSee all providers at this practice →

Geriatric MedicineAnn Arbor, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 78 Geriatric Medicine providers in MI — bottom quintile (cohort median 389).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$6K

Distinct drugs

Brand share

100.0%

Top prescribed drugs

Apixaban19 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Ana Montoya'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). 41 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF MICHIGAN	299	2,898
Erin Diviney Chun Geriatric Medicine · Ann Arbor, MI	76	365
Karen Neeb Nurse Practitioner · Ann Arbor, MI	73	456
REGENTS OF THE UNIVERSITY OF MICHIGAN	61	320
Mohamed Sayyouh Diagnostic Radiology · Ann Arbor, MI	60	226
Chinomso Nwagwu Geriatric Medicine · Ann Arbor, MI	53	180
Nancylee Stier Geriatric Medicine · Ann Arbor, MI	47	154
Aamer Chughtai Diagnostic Radiology · Ann Arbor, MI	39	142
Perry Pernicano Diagnostic Radiology · Ann Arbor, MI	33	83
Smita Patel Diagnostic Radiology · Ann Arbor, MI	32	107
Girish Gandikota Diagnostic Radiology · Ann Arbor, MI	31	90
Aine Kelly Diagnostic Radiology · Ann Arbor, MI	31	87

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