DR. FRANK GERALD AGUILAR M.D.
NPI 1659802270
Hospitalist in Chicago, IL

Active since March 24, 2017PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
251 E HURON ST STE 16-738, CHICAGO, IL 60611(312) 926-5924(312) 926-6134 Get Directions Write a Review

NPPES record last updated: July 24, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 24, 2020, Mar 24, 2017 (2 updates tracked since 2017).

About Dr. Frank Gerald Aguilar M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. FRANK GERALD AGUILAR M.D. (NPI 1659802270) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036151972) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1659802270
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameDR. FRANK GERALD AGUILARCredential: M.D.
Location Address251 E HURON ST STE 16-738Chicago, IL 60611-3055
Mailing Address251 E Huron St Ste 16-738Chicago, IL 60611-3055 · (312) 926-5924 · Fax (312) 926-6134
Fax(312) 926-6134
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMarch 24, 2017
Last NPPES UpdateJuly 24, 20202 updates tracked since enumeration
NPPES CertifiedJuly 24, 2020
NPI 1659802270 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in IL · 036151972
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
251 E HURON ST STE 16-738, Chicago, IL 60611

Secondary Practice Location 1

Location 1505 E 70th StNew York, NY 10021-4872 · Phone (212) 746-9663 · Fax (212) 746-3609

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Frank Gerald Aguilar M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5890126239
PECOS Enrollment IDI20200519000764
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
309 services113 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
61 services61 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
38 services19 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
32 services32 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
22 services22 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Hospitalist
251 E HURON ST STE 16-738
CHICAGO, IL 60611
Hospitalist
251 E HURON ST STE 16-738
CHICAGO, IL 60611
Hospitalist
251 E HURON ST STE 16-738
CHICAGO, IL 60611
Hospitalist
251 E HURON ST STE 16-738
CHICAGO, IL 60611
Physician Assistant
251 E HURON ST STE 16-738
CHICAGO, IL 60611
Physician Assistant
251 E HURON ST STE 16-738
CHICAGO, IL 60611
Hospitalist
251 E HURON ST STE 16-738
CHICAGO, IL 60611
Internal Medicine (Hematology & Oncology)
251 E HURON ST STE 16-738
CHICAGO, IL 60611

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Frank Aguilar's NPI number?

The NPI number for Frank Aguilar is 1659802270. It was assigned to this individual provider in the NPPES registry on March 24, 2017.

Where is Frank Aguilar located?

Frank Aguilar practices at 251 E Huron St Ste 16-738, Chicago, IL 60611. The listed phone number is (312) 926-5924.

What is Frank Aguilar's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Frank Aguilar enrolled in Medicare?

Yes. Frank Aguilar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Frank Aguilar affiliated with any hospitals?

According to CMS data, Frank Aguilar is affiliated with Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Frank Aguilar was last updated on July 24, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.