NPPES file of Aug 9, 2026

John Alexander Co, MD

Cardiovascular Disease Physician · Ridgewood, NJ

John Alexander Co, MD is a cardiovascular disease physician with a practice address in Ridgewood, New Jersey, and NPI 1588620199, issued on Apr 22, 2006. Check the license (New Jersey MA52567, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588620199
Name
John Alexander Co
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
MA52567 NJ
Self-reported in NPPES; status is on the state search
Practice location
140 Chestnut St, Ridgewood, NJ 07450
Phone
(201) 445-0405
Enumerated
Apr 22, 2006
Record last updated
Nov 28, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(201) 445-4282
Medicaid ID
3344401 NJ
Medicare enrollment
Enrolled (PECOS I20050124000206); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 140 Chestnut St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Douglas Avella, M.D.Pediatric Orthopaedic Surgery Physician1437200672
  2. Jay Babich, M.D.Gastroenterology Physician1275862732
  3. Zvi Fischer, M.D.Gastroenterology Physician1437108339
  4. Cristina FontanaMental Health Counselor1821524273
  5. Jennifer Hsieh, M.D.Gastroenterology Physician1629357835
  6. Michael Rahmin, M.D.Gastroenterology Physician1902856313

Verify John Alexander Co in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license MA52567
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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79% more Medicare Part D claims than the average cardiovascular disease physician in 2024

5,522 Medicare Part D claims for 520 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 12 claims were for opioids.

  1. John Co5,522
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate399 claims
  2. Rosuvastatin Calcium314 claims
  3. Atorvastatin Calcium303 claims
  4. Losartan Potassium266 claims
  5. Eliquis252 claims
  6. Nifedipine Er247 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): 0 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.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $862.77

35 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Co$862.77
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John Alexander Co among 1,102 cardiovascular disease physician records in New Jersey

John Alexander Co, MD is one of 1,102 cardiovascular disease physician records with a practice address in New Jersey. 87% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 40% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1983 · median 1997 among the 833 with a school on file
  • Record last updated2012 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in New Jersey

There are 1,102 cardiovascular disease physician records in New Jersey.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Kariann Abbate, MDRidgewood, NJ 074501548429582
  2. Nikolay BogushRidgewood, NJ 074501396164893
  3. Howard Goldschmidt, MDRidgewood, NJ 074501619940038
  4. Jayant Kirtane, M.D.Ridgewood, NJ 074501336305846
  5. Dennis Reison, MDRidgewood, NJ 074501316943483
  6. Robert Saporito,jr, MDRidgewood, NJ 074501326047572
  7. Alan Simon, M.D.Ridgewood, NJ 074501316946270
  8. Mark Sotsky, MDRidgewood, NJ 074501922070150

Common questions

What is John Alexander Co, MD's NPI number?

John Alexander Co, MD's National Provider Identifier (NPI) is 1588620199, issued on Apr 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Alexander Co, MD located?

The NPPES record lists a practice address at 140 Chestnut St, Ridgewood, NJ, 07450. Phone: (201) 445-0405. Providers update this record themselves, so call before visiting.

How can I verify John Alexander Co, MD's license?

NPPES lists New Jersey license number MA52567, 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 John Alexander Co, MD prescribe under Medicare Part D?

In 2024, John Alexander Co, MD had 5,522 Medicare Part D claims for 520 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is John Alexander Co, MD's MIPS final score?

The 2023 MIPS final score is 0 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.