Doctor profile · Federal record

Dr. Margaret Co, MD

Allergy Physician (CMS: Allergy/Immunology) · Ridgewood, NJ

  • NPI 1568494128
  • Accepts Medicare
  • MIPS 93.6 / 100 · 2023
  • 42 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
75 N Maple Ave, Suite 100
Ridgewood, NJ 074503247
(201) 652-7788
fax (201) 652-8644

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 19, 2012
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207KA0200X — NUCC code
State license (1)
New Jersey #MAO55724

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568494128. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,709
Distinct HCPCS
8
Medicare allowed
$50,540
HCPCS Description Services Patients Avg allowed
95004 Test for allergy using allergenic extract 2,090 59 $5
95165 Professional service for preparation and provision of 1 or more antigens 205 11 $18
95117 Professional service for multiple injections of allergen 159 15 $14
99214 Established patient office or other outpatient visit, 30-39 minutes 87 51 $142
99213 Established patient office or other outpatient visit, 20-29 minutes 59 42 $99
99204 New patient office or other outpatient visit, 45-59 minutes 47 47 $185
99203 New patient office or other outpatient visit, 30-44 minutes 46 46 $126
95076 Test for allergy using ingested items, initial 2 hours 16 14 $131

In context: peer comparison

Among 1 peers in Ridgewood Allergy Physician, average services per provider: 338. This provider delivers 8.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,068
Transactions
45
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 7 $313.81
Genzyme Corporation 13 $272.18
Novo Nordisk INC 3 $54.29
Takeda Pharmaceuticals U.S.A., INC. 3 $52.01
AstraZeneca Pharmaceuticals Lp 3 $48.32
Regeneron Healthcare Solutions, INC. 3 $47.72
Grifols USA, LLC 2 $43.58
Celltrion USA INC. 2 $33.05
Kaleo, INC. 2 $32.56
Merck Sharp & Dohme LLC 2 $31.80
Blueprint Medicines Corporation 1 $23.00
Lilly USA, LLC 1 $19.97
Sandoz INC. 1 $18.45
Boehringer Ingelheim Pharmaceuticals, INC. 1 $17.56
Amgen INC. 1 $15.94

By nature of payment

Food and Beverage
$1,035
Education
$33

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
345
Patients
102
Total drug cost
$37,363
Drug Type Claims Patients Total cost
Fluticasone Propionate Generic 94 37 $1,628
Montelukast Sodium Generic 34 0 $328
Levocetirizine Dihydrochloride Generic 26 14 $791
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 25 14 $1,206
Azelastine Hcl Generic 25 13 $942
Ipratropium Bromide Generic 21 12 $1,257
Omeprazole Generic 20 0 $120
Symbicort (Budesonide/Formoterol Fumarate) Brand 20 0 $10,806
Prednisone Generic 18 12 $118
Advair Diskus (Fluticasone Propion/Salmeterol) Brand 15 0 $8,163

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Co's medical specialty?
Dr. Margaret Co practices Allergy Physician in Ridgewood, NJ.
Where does Dr. Margaret Co practice?
Dr. Margaret Co practices at 75 N Maple Ave, Ridgewood, NJ 074503247. Office phone: 2016527788.
What is Dr. Margaret Co's NPI?
Dr. Margaret Co's National Provider Identifier (NPI) is 1568494128, issued by NPPES.
Does Dr. Margaret Co accept Medicare assignment?
Yes. Dr. Margaret Co accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Co commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Professional service for multiple injections of allergen (HCPCS 95117). Source: CMS Medicare Physician & Other Practitioners file.