Jack Marshall Stark, PA-C
Medical Physician Assistant · Danbury, CT
Jack Marshall Stark, PA-C is a medical physician assistant with a practice address in Danbury, Connecticut, and NPI 1669436820, issued on Apr 14, 2006. Check the license (Connecticut 000044, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jack Marshall Stark
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 000044 CT
Self-reported in NPPES; status is on the state search - Practice location
- 100 Reserve RD Ste A4, Danbury, CT 06810
- Phone
- (203) 794-1979
- Enumerated
- Apr 14, 2006
- Record last updated
- Oct 20, 2022
- Fax
- (203) 794-1796
- Medicare enrollment
- Enrolled (PECOS I20230324000278); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,138 in Connecticut → Look up another NPI →
Also registered at 100 Reserve RD Ste A4
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Crisannys Fernandez, APRNFamily Nurse Practitioner1225864309
- Jeffrey Metzger, MDInternal Medicine Physician1558328344
- Danielle Phillip-Journal, MDInternal Medicine Physician1609282219
Verify Jack Marshall Stark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 000044Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average medical physician assistant in 2024
1,362 Medicare Part D claims for 386 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium85 claims
- Atorvastatin Calcium77 claims
- Levothyroxine Sodium62 claims
- Lisinopril56 claims
- Losartan Potassium55 claims
- Amlodipine Besylate54 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.
Bills Medicare through one group practice
- Prohealth Physicians PCDanbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jack Marshall Stark among 1,138 medical physician assistant records in Connecticut
Jack Marshall Stark, PA-C is one of 1,138 medical physician assistant records with a practice address in Connecticut. 79% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 76% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1987 · median 2015 among the 732 with a school on file
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
42 medical physician assistant records list a practice address in Danbury
They are 42 of the 2,412 NPPES records with a practice address in Danbury, and 1,138 medical physician assistant records in Connecticut.
All 1,138 in Connecticut → Every provider in Danbury → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Michelle Chiriani, P.A.Danbury, CT 068101518911452
- Anne D'Amico, P.A.Danbury, CT 068101194768069
- Richard Kopf, PA-CDanbury, CT 068101396709556
- Jennifer Madonia, PA-CDanbury, CT 068101427077247
- Daniel McEvoy, PA-CDanbury, CT 068101174558415
- Melanie McKeever, P.A.Danbury, CT 068101720072515
- James McMahon, PA-CDanbury, CT 068101740278472
- Sydney Page, PADanbury, CT 068101174502033
Common questions
What is Jack Marshall Stark, PA-C's NPI number?
Jack Marshall Stark, PA-C's National Provider Identifier (NPI) is 1669436820, issued on Apr 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jack Marshall Stark, PA-C located?
The NPPES record lists a practice address at 100 Reserve RD Ste A4, Danbury, CT, 06810. Phone: (203) 794-1979. Providers update this record themselves, so call before visiting.
How can I verify Jack Marshall Stark, PA-C's license?
NPPES lists Connecticut license number 000044, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Jack Marshall Stark, PA-C prescribe under Medicare Part D?
In 2024, Jack Marshall Stark, PA-C had 1,362 Medicare Part D claims for 386 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.