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DR. ALVARO O MERCADO MD
NPI 1841211349
Obstetrics & Gynecology in Chicago, IL

Active since July 21, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 14D2022805 · Waiver
7107 W BELMONT AVE STE 2, CHICAGO, IL 60634(773) 237-2229(773) 237-9992 Get Directions Write a Review

NPPES record last updated: April 12, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 12, 2023, Apr 3, 2019 (2 updates tracked since 2019).

About Dr. Alvaro O Mercado Md NPPES

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

DR. ALVARO O MERCADO MD (NPI 1841211349) is an individual obstetrics & gynecology provider in Chicago, Illinois, licensed in Illinois (036066330) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through April 10, 2027, and is affiliated with Amita Health Resurrection Medical Center.

NPPES Registry Identity

NPI1841211349
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. ALVARO O MERCADOCredential: MD
Location Address7107 W BELMONT AVE STE 2Chicago, IL 60634-4500
Mailing Address500 N Lincoln AvePark Ridge, IL 60068-3141 · (847) 692-6218 · Fax (847) 692-5609
Phone(773) 237-2229
Fax(773) 237-9992
Sole ProprietorYes
Medical School CMSOtherGraduated 1977
Enumeration DateJuly 21, 2006
Last NPPES UpdateApril 12, 20232 updates tracked since enumeration
NPPES CertifiedApril 12, 2023
✔ NPI 1841211349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036066330
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
7107 W BELMONT AVE STE 2, Chicago, IL 60634
Open in Google Maps ↗

Other Identifiers 3

Medicaid036066330IL
Other316-03334Blue Shield /blue Cross
Other6410257Cigna

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. Alvaro O Mercado 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 ID1557320397
PECOS Enrollment IDI20041007000005
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 Reassignments

2

Medicare enrollment records show Alvaro Mercado reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Obhg Illinois Sc
7.3 mi
Obstetrics & Gynecology
3249 OAK PARK AVE
Berwyn, IL 60402
  • Reassigned Medicare billing, Illinois enrollment
  • 219 clinicians in this Medicare group
NPI 1700107216 (800) 967-2289
Prime Healthcare Illinois Medical Group LLC
7.7 mi
Multi-Specialty
2380 E DEMPSTER ST
Des Plaines, IL 60016
  • Reassigned Medicare billing, Illinois enrollment
  • 443 clinicians in this Medicare group
NPI 1023837689 (833) 291-0464

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D2022805

Alvaro Mercado MD · Chicago, IL
Active · expires Apr 10, 2027
CLIA Number14D2022805
Laboratory TypePhysician Office
Certificate Effective DateApril 11, 2025
Certificate Expiration DateApril 10, 2027
Laboratory DirectorAlvaro Mercado
Laboratory Phone(773) 237-2229
Laboratory LocationAlvaro Mercado MD7107 W Belmont Ave - Ste 2, Chicago, IL 60634
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Hospital Affiliations CMS Care Compare

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

Amita Health Resurrection Medical Center

Acute Care Hospitals · Chicago, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140117
Location7435 W Talcott AvenueChicago, IL 60631 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60634 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
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Alvaro Mercado's NPI number?

The NPI number for Alvaro Mercado is 1841211349. It was assigned to this individual provider in the NPPES registry on July 21, 2006.

Where is Alvaro Mercado located?

Alvaro Mercado practices at 7107 W Belmont Ave Ste 2, Chicago, IL 60634. The listed phone number is (773) 237-2229.

What is Alvaro Mercado's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Alvaro Mercado enrolled in Medicare?

Yes. Alvaro Mercado 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 organizations bill Medicare for Alvaro Mercado's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alvaro Mercado reassigns Medicare benefits to 2 organizations: Obhg Illinois Sc (Berwyn, IL) and Prime Healthcare Illinois Medical Group LLC (Des Plaines, IL). Each 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 Alvaro Mercado's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Alvaro Mercado hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D2022805) is associated with this NPI, valid through April 10, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Alvaro Mercado accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Alvaro Mercado 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 Alvaro Mercado affiliated with any hospitals?

According to CMS data, Alvaro Mercado is affiliated with Amita Health Resurrection Medical Center.

When was this NPI record last updated?

The NPPES record for Alvaro Mercado was last updated on April 12, 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.