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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DANNIELLE C GRAYER MD
NPI 1548754674
Internal Medicine - Infectious Disease in Chicago, IL

Active since June 21, 2018PECOS Enrolled
240 E HURON ST # 1-200, CHICAGO, IL 60611(312) 503-7975 Get Directions Write a Review

NPPES record last updated: August 31, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Aug 31, 2026, Jun 21, 2018 (2 updates tracked since 2018).

About Dannielle C Grayer Md NPPES

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

DANNIELLE C GRAYER MD (NPI 1548754674) is an individual infectious disease provider in Chicago, Illinois, licensed in Illinois (036161232) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1548754674
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameDANNIELLE C GRAYERCredential: MD
Location Address240 E HURON ST # 1-200Chicago, IL 60611-2909
Mailing Address2317 W Grenshaw St Unit 1Chicago, IL 60612-4205 · (317) 629-6521
Phone(312) 503-7975
Sole ProprietorNo
Enumeration DateJune 21, 2018
Last NPPES UpdateAugust 31, 20262 updates tracked since enumeration
NPPES CertifiedAugust 31, 2026
✔ NPI 1548754674 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in IL · 036161232
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License 125073279 (IL)
Also ListedPediatricsTaxonomy 208000000X · License 125073279 (IL)
240 E HURON ST # 1-200, Chicago, IL 60611
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Secondary Practice Locations 2

Location 1676 N Saint Clair St Ste 940Chicago, IL 60611-2945 · Phone (312) 926-8358 · Fax (312) 926-9630
Location 21650 W Harrison St Ste 466Chicago, IL 60612-3800 · Phone (312) 942-2200

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dannielle C Grayer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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.

Other Providers at the Same Location NPPES 7

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

MADISON LUCE
Student in an Organized Health Care Education/Training Program
240 E HURON ST # 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
OLAMIDE ADEBAYO MPH
Student in an Organized Health Care Education/Training Program
240 E HURON ST # 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
SYDNEY R TOBIS-TOWERS
Physician Assistant
240 E HURON ST # 1-200
CHICAGO, IL 60611
Cook County (312) 503-1851
IRETIOLA HAMZAT
Student in an Organized Health Care Education/Training Program
240 E HURON ST # 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
DR. ERIC ANTHONY MORELL M.D.
Anesthesiology
240 E HURON ST # 1-200, MCGAW MEDICAL CENTER OF NORTHWESTERN UNIVERSITY
CHICAGO, IL 60611
Cook County (312) 472-3585
PARUL KATHURIA GOYAL MD
Dermatology
240 E HURON ST # 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
JON PAUL KLEIN MD
Psychiatry & Neurology (Neurology)
240 E HURON ST # 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975

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 Dannielle Grayer's NPI number?

The NPI number for Dannielle Grayer is 1548754674. It was assigned to this individual provider in the NPPES registry on June 21, 2018.

Where is Dannielle Grayer located?

Dannielle Grayer practices at 240 E Huron St # 1-200, Chicago, IL 60611. The listed phone number is (312) 503-7975.

What is Dannielle Grayer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Dannielle Grayer enrolled in Medicare?

Yes. Dannielle Grayer is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Dannielle Grayer was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.