Margaret Ann Co, MD
Allergy Physician · Ridgewood, NJ
Margaret Ann Co, MD is an allergy physician with a practice address in Ridgewood, New Jersey, and NPI 1568494128, issued on Jul 6, 2006. Check the license (New Jersey MAO55724, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Margaret Ann Co
- Credential
- MD
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- MAO55724 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 75 N Maple Ave, Ridgewood, NJ 07450
- Phone
- (201) 652-7788
- Enumerated
- Jul 6, 2006
- Record last updated
- Jul 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (201) 652-8644
- Medicare enrollment
- Enrolled (PECOS I20080828000413); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 42 in New Jersey → Look up another NPI →
Also registered at 75 N Maple Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Frank Ferraro, M.D.Plastic Surgery Physician1891764478
Verify Margaret Ann Co in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license MAO55724Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average allergy physician in 2024
471 Medicare Part D claims for 138 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Fluticasone Propionate60 claims
- Levocetirizine Dihydrochloride59 claims
- Azelastine Hcl49 claims
- Ipratropium Bromide38 claims
- Triamcinolone Acetonide26 claims
- Albuterol Sulfate Hfa24 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 95 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,068.00
48 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 502 providers of this specialty with any payment received $9,080.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mpv New Jersey MD Services PCParamus, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Ann Co among 42 allergy physician records in New Jersey
Margaret Ann Co, MD is one of 42 allergy physician records with a practice address in New Jersey. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.
- NPI issued2006 · 19% of these records are older, 38% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1984 · median 1987 among the 27 with a school on file
- Record last updated2012 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in New Jersey
There are 42 allergy physician records in New Jersey.
All 42 in New Jersey → Every provider in Ridgewood → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Jeffrey Weiss, MDRiverdale, NJ 074571366625162
- Jay Kashkin, MDFair Lawn, NJ 074101235128497
- Slawomir Kosinski, M.D.Paterson, NJ 075031184661597
- Justin Skripak, M.D.Paramus, NJ 076521437205929
- Jun Yang, M DTinton Falls, NJ 077011730166414
- Feryal Hajee, MDLittle Silver, NJ 077391841438447
- Patricia Hicks Hartman, M.D.Westfield, NJ 070901164488284
- Harish Kothari, MDSouth Plainfield, NJ 070801003878943
Common questions
What is Margaret Ann Co, MD's NPI number?
Margaret Ann Co, MD's National Provider Identifier (NPI) is 1568494128, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Ann Co, MD located?
The NPPES record lists a practice address at 75 N Maple Ave, Ridgewood, NJ, 07450. Phone: (201) 652-7788. Providers update this record themselves, so call before visiting.
How can I verify Margaret Ann Co, MD's license?
NPPES lists New Jersey license number MAO55724, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Margaret Ann Co, MD prescribe under Medicare Part D?
In 2024, Margaret Ann Co, MD had 471 Medicare Part D claims for 138 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.
What is Margaret Ann Co, MD's MIPS final score?
The 2023 MIPS final score is 95 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.