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DR. MARLON DIAZ GARCIA M.D.
NPI 1801102058
Internal Medicine in Chicago, IL

Active since August 25, 2010PECOS EnrolledAccepts Medicare Assignment
84.57/100
CMS Quality Rating
1926 W HARRISON ST, APT 1000, CHICAGO, IL 60612(312) 852-1336 Get Directions Write a Review

NPPES record last updated: April 23, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 23, 2021, Dec 9, 2020 (2 updates tracked since 2020).

About Dr. Marlon Diaz Garcia M.d. NPPES

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

DR. MARLON DIAZ GARCIA M.D. (NPI 1801102058) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036-132501) and active in the NPI registry since August 2010. He is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1801102058
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARLON DIAZ GARCIACredential: M.D.
Location Address1926 W HARRISON ST, APT 1000Chicago, IL 60612-3737
Mailing Address1926 W Harrison St, Apt 1000Chicago, IL 60612-3737 · (312) 852-1336
Phone(312) 852-1336
Sole ProprietorYes
Medical School CMSOtherGraduated 2007
Enumeration DateAugust 25, 2010
Last NPPES UpdateApril 23, 20212 updates tracked since enumeration
NPPES CertifiedApril 23, 2021
✔ NPI 1801102058 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036-132501
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 036-132501 (IL)
1926 W HARRISON ST, Chicago, IL 60612
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

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. Marlon Diaz Garcia 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 ID4587987185
PECOS Enrollment IDI20150107001464
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 3

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.
87 services23 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.
21 services20 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.
15 services15 patients

Hospital Affiliations CMS Care Compare

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

John H Stroger Jr Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number140124
Location1901 W Harrison StChicago, IL 60612 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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.

84.57/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality60.25
Promoting Interoperability100
Improvement Activities40
Cost67

Other Providers at the Same Location NPPES 3

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

DR. JAMUNA REDDY GARISA M.D.,
Pediatrics
1926 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 391-3443
CORAZON RAPOSA AGRAVANTE D.T.
Developmental Therapist
1926 W HARRISON ST, APT. 211
CHICAGO, IL 60612
Cook County (856) 313-1386
JOHN H STROGER HOSPITAL OF COOK COUNTY
General Acute Care Hospital
1926 W HARRISON ST, MEDICAL CENTER APARTMENT,#1109
CHICAGO, IL 60612
Cook County (617) 803-8736

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 Marlon Garcia's NPI number?

The NPI number for Marlon Garcia is 1801102058. It was assigned to this individual provider in the NPPES registry on August 25, 2010.

Where is Marlon Garcia located?

Marlon Garcia practices at 1926 W Harrison St Apt 1000, Chicago, IL 60612. The listed phone number is (312) 852-1336.

What is Marlon Garcia's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Marlon Garcia enrolled in Medicare?

Yes. Marlon Garcia 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.

What insurance does Marlon Garcia accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Marlon Garcia as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Marlon Garcia affiliated with any hospitals?

According to CMS data, Marlon Garcia is affiliated with John H Stroger Jr Hospital.

When was this NPI record last updated?

The NPPES record for Marlon Garcia was last updated on April 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.