DR. MARGARET ANN CO MD
NPI 1568494128
Allergy & Immunology - Allergy in Ridgewood, NJ
About Dr. Margaret Ann Co Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET ANN CO MD (NPI 1568494128) is an individual allergy provider in Ridgewood, New Jersey, licensed in New Jersey (MAO55724) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted 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. Margaret Ann Co 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.
Medicare Billing Reassignment
Medicare enrollment records show Margaret Co reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Westwood, NJ 07675
- Reassigned Medicare billing, New Jersey enrollment
- 189 clinicians in this Medicare group
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 10
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.
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.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RIDGEWOOD, NJ 07450
RIDGEWOOD, NJ 07450
RIDGEWOOD, NJ 07450
RIDGEWOOD, NJ 07450
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 Margaret Co's NPI number?
The NPI number for Margaret Co is 1568494128. It was assigned to this individual provider in the NPPES registry on July 6, 2006.
Where is Margaret Co located?
Margaret Co practices at 75 N Maple Ave Suite 100, Ridgewood, NJ 07450. The listed phone number is (201) 652-7788.
What is Margaret Co's specialty?
The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.
Is Margaret Co enrolled in Medicare?
Yes. Margaret Co 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 Margaret Co's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Co reassigns Medicare benefits to Mpv New Jersey MD Services PC (Westwood, NJ). 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 Margaret Co's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Co accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Margaret Co 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 Margaret Co was last updated on July 19, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Dr. Margaret Ann Co, MD · NPI 1568494128
Allergy physician in Ridgewood, New Jersey. Individual provider, active in the CMS NPPES registry since July 6, 2006.
## Identity
- **NPI:** 1568494128 (Entity type: Individual)
- **Enumerated:** July 6, 2006
- **Primary specialty:** Allergy & Immunology - Allergy · taxonomy 207KA0200X
- **State license:** MAO55724 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 75 N MAPLE AVE, SUITE 100, Ridgewood, NJ 07450-3247
- **Phone:** (201) 652-7788 · **Fax:** (201) 652-8644
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mpv New Jersey MD Services PC (NPI 1215391271, Westwood, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1984
## Record status
- **NPPES last updated:** July 19, 2012
- **Other identifiers:** Medicare ID-Type Unspecified 647143; Medicare UPIN E69534
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Source: [NPI Profile](https://npiprofile.com/npi/1568494128) · Data from the CMS NPPES public registry.