Christopher Stewart Marnell
Cardiovascular Disease Physician · Morristown, NJ
Christopher Stewart Marnell is a cardiovascular disease physician with a practice address in Morristown, New Jersey, and NPI 1629538079, issued on Mar 21, 2019. Check the license (New Jersey 25MA12549800, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Christopher Stewart Marnell
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 25MA12549800 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 435 South St Ste 100, Morristown, NJ 07960
- Phone
- (973) 267-3944
- Enumerated
- Mar 21, 2019
- Record last updated
- Jul 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20250724000537); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,102 in New Jersey → Look up another NPI →
Also registered at 435 South St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Bachman, M.D.Cardiovascular Disease Physician1811263791
- Colleen Coughlin, M.D.Cardiovascular Disease Physician1235144775
- Karan Kapoor, M.D.Cardiovascular Disease Physician1104169028
- Nazir Savji, MDInterventional Cardiology Physician1215318746
Verify Christopher Stewart Marnell 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 25MA12549800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
240 Medicare Part D claims for 55 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Amlodipine Besylate29 claims
- Metoprolol Succinate25 claims
- Rosuvastatin Calcium23 claims
- Atorvastatin Calcium16 claims
- Eliquis15 claims
- Furosemide13 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
- Practice Associates Medical GroupMorristown, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Stewart Marnell among 1,102 cardiovascular disease physician records in New Jersey
Christopher Stewart Marnell 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 2019, is newer than 96% of them.
- NPI issued2019 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2019 · median 1997 among the 833 with a school on file
- Record last updated2025 · 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).
46 cardiovascular disease physician records list a practice address in Morristown
They are 46 of the 2,942 NPPES records with a practice address in Morristown, and 1,102 cardiovascular disease physician records in New Jersey.
All 1,102 in New Jersey → Every provider in Morristown → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Linda Gillam, MDMorristown, NJ 079601457359382
- Stephen Guss, M.D.Morristown, NJ 079601386642395
- Allen Hsieh, MDMorristown, NJ 079601912992769
- Robert Kipperman, M.D.Morristown, NJ 079601942297908
- Giuseppe Limandri, MDMorristown, NJ 079601548234628
- John Mondelli, M.D.Morristown, NJ 079601356340780
- Karel Raska, M.D.Morristown, NJ 079601740288752
- Derek Santiago, MDMorristown, NJ 079601649244732
Common questions
What is Christopher Stewart Marnell's NPI number?
Christopher Stewart Marnell's National Provider Identifier (NPI) is 1629538079, issued on Mar 21, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Stewart Marnell located?
The NPPES record lists a practice address at 435 South St Ste 100, Morristown, NJ, 07960. Phone: (973) 267-3944. Providers update this record themselves, so call before visiting.
How can I verify Christopher Stewart Marnell's license?
NPPES lists New Jersey license number 25MA12549800, 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 Christopher Stewart Marnell prescribe under Medicare Part D?
In 2024, Christopher Stewart Marnell had 240 Medicare Part D claims for 55 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.