John Newton Mackey, PHYSICIANS ASSITANT
Physician Assistant · Plainfield, CT
John Newton Mackey, PHYSICIANS ASSITANT is a physician assistant with a practice address in Plainfield, Connecticut, and NPI 1275609984, issued on Nov 27, 2006. Check the license (Connecticut 001429, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Newton Mackey
- Credential
- PHYSICIANS ASSITANT
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 001429 CT
Self-reported in NPPES; status is on the state search - Practice location
- 558 Norwich Road, Plainfield, CT 06374
- Phone
- (860) 564-4054
- Enumerated
- Nov 27, 2006
- Record last updated
- May 27, 2022
- Fax
- (860) 564-0354
- Medicaid ID
- 004224490 CT
- Medicare enrollment
- Enrolled (PECOS I20040720000688); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 558 Norwich Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Claire Warren, MEDICAL DOCTORFamily Medicine Physician1730255449
Verify John Newton Mackey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 001429Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.1 times the Medicare Part D claims of the average physician assistant in 2024
4,255 Medicare Part D claims for 411 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 64 claims were for opioids.
Most prescribed
- Atorvastatin Calcium277 claims
- Valsartan180 claims
- Lisinopril174 claims
- Levothyroxine Sodium121 claims
- Rosuvastatin Calcium121 claims
- Amlodipine Besylate115 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.
Industry payments in 2024: $3,732.31
229 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 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 2 group practices
- Healthcall Medical Center,llcPlainfield, CT
- Helar Campos MD And Associates Family Medical Center, LLCNorwich, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
6 physician assistant records list a practice address in Plainfield
They are 6 of the 83 NPPES records with a practice address in Plainfield, and 2,047 physician assistant records in Connecticut.
All 6 in Plainfield → All 2,047 in Connecticut → Every provider in Plainfield →
Other physician assistant records in Connecticut
- Gazang Abdulla, PA-CHartford, CT1396566956
- Jill Aboulian, PA-CCheshire, CT1881615730
- Celin Abraham, PA-CWaterbury, CT1407171085
- Louisa Acca, PA-CHartford, CT1679265458
- Julia Accorsini, PA-CNew Haven, CT1326793670
- Erica Acevedo, PA-CNorwalk, CT1093289936
- Ariana AcquaruloShelton, CT1528439312
- Erica Acquarulo, PA-CBridgeport, CT1982468799
- Prince Acquaye, PA-CFairfield, CT1639767130
- Clark Adams, PA-CHartford, CT1245329457
Common questions
What is John Newton Mackey, PHYSICIANS ASSITANT's NPI number?
John Newton Mackey, PHYSICIANS ASSITANT's National Provider Identifier (NPI) is 1275609984, issued on Nov 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Newton Mackey, PHYSICIANS ASSITANT located?
The NPPES record lists a practice address at 558 Norwich Road, Plainfield, CT, 06374. Phone: (860) 564-4054. Providers update this record themselves, so call before visiting.
How can I verify John Newton Mackey, PHYSICIANS ASSITANT's license?
NPPES lists Connecticut license number 001429, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does John Newton Mackey, PHYSICIANS ASSITANT prescribe under Medicare Part D?
In 2024, John Newton Mackey, PHYSICIANS ASSITANT had 4,255 Medicare Part D claims for 411 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
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.