What is Guillermo Otero-Perez's specialty?

Guillermo Otero-Perez (NPI 1962441725) is a Medicare-billing provider whose primary specialty is Psychiatry in Philadelphia, PA.

Where does Guillermo Otero-Perez practice?

Guillermo Otero-Perez practices in Philadelphia, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1962441725.

How much does Medicare pay Guillermo Otero-Perez?

Guillermo Otero-Perez (NPI 1962441725) received approximately $11K in total Medicare Part B payments, serving 41 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1962441725

Guillermo Otero-PerezMD

PRACTICEEINSTEIN PRACTICE PLAN, INCSee all providers at this practice →

PsychiatryPhiladelphia, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$6K

Peer benchmark

Total Medicare services vs. 1,042 Psychiatry providers in PA — below median (cohort median 233).

PRESCRIBING · PART D · 2024

Total Rx claims

404

Beneficiaries

—

Total drug cost

$6K

Distinct drugs

Brand share

21.5%

Top prescribed drugs

Clonazepam68 claims

Sertraline Hcl32 claims

Fluoxetine Hcl28 claims

Trazodone Hcl27 claims

Lorazepam25 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 Guillermo Otero-Perez'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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
City Of Philadelphia Ambulance Service Provider · Philadelphia, PA	35	95
BELMONT CENTER FOR COMPRHENSIVE TREATMENT	23	41
Vincent Figueredo Cardiology · Langhorne, PA	17	32
Priyankar Sarkar Psychiatry · Philadelphia, PA	15	29
UHS OF FAIRMOUNT INC	13	28

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