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DR. GREGG MARTIN DELOSSANTOS
NPI 1184886517
Podiatrist - Foot & Ankle Surgery in Chicago, IL

Active since June 26, 2008PECOS EnrolledAccepts Medicare Assignment
2839 W MADISON ST, CHICAGO, IL 60612(773) 533-5500(773) 533-0945 Get Directions Write a Review

NPPES record last updated: April 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 7, 2023, Jan 24, 2022 (2 updates tracked since 2022).

About Dr. Gregg Martin Delossantos NPPES

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

DR. GREGG MARTIN DELOSSANTOS (NPI 1184886517) is an individual foot & ankle surgery provider in Chicago, Illinois, licensed in Illinois (016005158) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS and is a graduate of William M. Scholl College Of Podiatric Medicine (2002).

NPPES Registry Identity

NPI1184886517
Entity TypeIndividualMale
Primary Taxonomy213ES0103X
Provider Legal NameDR. GREGG MARTIN DELOSSANTOS
Location Address2839 W MADISON STChicago, IL 60612-1925
Mailing Address39671 Treasury CtrChicago, IL 60694-9600 · (773) 533-5500 · Fax (773) 533-0945
Phone(773) 533-5500
Fax(773) 533-0945
Sole ProprietorYes
Medical School CMSWilliam M. Scholl College Of Podiatric MedicineGraduated 2002
Enumeration DateJune 26, 2008
Last NPPES UpdateApril 7, 20232 updates tracked since enumeration
NPPES CertifiedApril 7, 2023
✔ NPI 1184886517 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPodiatrist · Foot & Ankle SurgeryPodiatric Medicine & Surgery Service Providers
Taxonomy Code213ES0103X
License✔ Licensed in IL · 016005158
2839 W MADISON ST, Chicago, IL 60612
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregg Martin Delossantos 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 ID1254234016
PECOS Enrollment IDI20040129000273
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.

Medicare Billing Reassignment

Medicare enrollment records show Gregg Delossantos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Illinois Doctors On Demand
6.4 mi
Family Medicine
4900 N PULASKI RD
Chicago, IL 60630
  • Reassigned Medicare billing, Illinois enrollment
  • 11 clinicians in this Medicare group
NPI 1780148072 (847) 530-5916

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348
An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.
227 services71 patients
Trimming of fingernails or toenails 11719
Trimming of fingernails or toenails is a simple procedure for maintaining hygiene and preventing nail-related issues. It involves cutting the nails straight across, then smoothing any sharp edges with a file. Regular nail care can help prevent infections and discomfort.
103 services44 patients
Residence visit for new patient with low level of medical decision making, per day, if using time, at least 30 minutes 99342
A new patient home visit is a 30-minute appointment where a healthcare provider comes to your home to assess your health needs. This can include discussing your medical history, current conditions, and treatment plans. It's a convenient way to receive care in your own environment.
44 services44 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
34 services19 patients

Other Providers at the Same Location NPPES

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

RAMESHKUMAR C. PATEL
Pharmacy (Community/Retail Pharmacy)
2839 W MADISON ST
CHICAGO, IL 60612
Cook County (773) 638-6615

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 Gregg Delossantos's NPI number?

The NPI number for Gregg Delossantos is 1184886517. It was assigned to this individual provider in the NPPES registry on June 26, 2008.

Where is Gregg Delossantos located?

Gregg Delossantos practices at 2839 W Madison St, Chicago, IL 60612. The listed phone number is (773) 533-5500.

What is Gregg Delossantos's specialty?

The primary specialty registered for this NPI is Podiatrist, specializing in Foot & Ankle Surgery, with taxonomy code 213ES0103X.

Is Gregg Delossantos enrolled in Medicare?

Yes. Gregg Delossantos 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.

Which organization bills Medicare for Gregg Delossantos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Delossantos reassigns Medicare benefits to Illinois Doctors On Demand (Chicago, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregg Delossantos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregg Delossantos accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Gregg Delossantos 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.

When was this NPI record last updated?

The NPPES record for Gregg Delossantos was last updated on April 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.