ANN-MARIE TOMAS TANTOCO MD
NPI 1366686586
Hospitalist in Chicago, IL

Active since May 01, 2009PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
251 E HURON ST, CHICAGO, IL 60611(312) 926-5924 Get Directions Write a Review

NPPES record last updated: November 3, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 3, 2021, Jun 22, 2018, Sep 27, 2016 (3 updates tracked since 2016).

About Ann-marie Tomas Tantoco Md NPPES

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

ANN-MARIE TOMAS TANTOCO MD (NPI 1366686586) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036.146534) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1366686586
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameANN-MARIE TOMAS TANTOCOCredential: MD
Location Address251 E HURON STChicago, IL 60611
Mailing Address251 E Huron St Ste 16-738Chicago, IL 60611-2908 · (312) 926-5924
Sole ProprietorNo
Medical School CMSWest Virginia University School Of MedicineGraduated 2009
Enumeration DateMay 1, 2009
Last NPPES UpdateNovember 3, 20213 updates tracked since enumeration
NPPES CertifiedNovember 3, 2021
NPI 1366686586 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in IL · 036.146534
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036.146534 (IL)
Also ListedPediatricsTaxonomy 208000000X · License 036.146534 (IL)
251 E HURON ST, Chicago, IL 60611

Secondary Practice Location 1

Location 1225 E Chicago AveChicago, IL 60611-2991 · Phone (312) 227-7413

Other Identifiers 1

Medicaid0086290OH

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

Ann-marie Tomas Tantoco Md 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 ID143461988
PECOS Enrollment IDI20180801001564
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 4

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.
164 services65 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
35 services35 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.
21 services11 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.
18 services18 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.

Pathology (Anatomic Pathology & Clinical Pathology)
251 E HURON ST, FEINBERG PAVILION
CHICAGO, IL 60611
Psychiatry & Neurology (Psychiatry)
251 E HURON ST, GALTER 3-150, C
CHICAGO, IL 60611
Anesthesiology
251 E HURON ST
CHICAGO, IL 60611
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Emergency Medicine
251 E HURON ST
CHICAGO, IL 60611
Dermatology
251 E HURON ST
CHICAGO, IL 60611
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Obstetrics & Gynecology
251 E HURON ST
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 Ann-marie Tantoco's NPI number?

The NPI number for Ann-marie Tantoco is 1366686586. It was assigned to this individual provider in the NPPES registry on May 1, 2009.

Where is Ann-marie Tantoco located?

Ann-marie Tantoco practices at 251 E Huron St, Chicago, IL 60611. The listed phone number is (312) 926-5924.

What is Ann-marie Tantoco's specialty?

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

Is Ann-marie Tantoco enrolled in Medicare?

Yes. Ann-marie Tantoco 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 Ann-marie Tantoco affiliated with any hospitals?

According to CMS data, Ann-marie Tantoco is affiliated with Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Ann-marie Tantoco was last updated on November 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.