Glen Erik Tonnessen, MD
Cardiovascular Disease Physician · Flemington, NJ
Glen Erik Tonnessen, MD is a cardiovascular disease physician with a practice address in Flemington, New Jersey, and NPI 1154387389, issued on Apr 25, 2006. Check the license (New Jersey MA055129, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Glen Erik Tonnessen
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- MA055129 NJ
25MA05512900 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Wescott Drive, Flemington, NJ 08822
- Phone
- (908) 788-1710
- Enumerated
- Apr 25, 2006
- Record last updated
- Mar 27, 2025
- Fax
- (908) 788-1716
- Medicaid ID
- 5H53003 NJ
- Medicare enrollment
- Enrolled (PECOS I20100812000672); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1100 Wescott Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Benigno, M.D.Cardiovascular Disease Physician1194725549
- Ted Bialy, MDCardiovascular Disease Physician1801852058
- Jennifer Hamill, NPNurse Practitioner1972527463
- Jonathan Horiuchi, MDCardiovascular Disease Physician1659338077
- Katharine Judson-YagerPhysician Assistant1154591576
- Jennifer Kusant, PAPhysician Assistant1174747083
Verify Glen Erik Tonnessen 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 MA055129Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,353 Medicare Part D claims for 258 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Rosuvastatin Calcium255 claims
- Atorvastatin Calcium189 claims
- Metoprolol Succinate177 claims
- Ezetimibe176 claims
- Amlodipine Besylate128 claims
- Losartan Potassium126 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 practice group's MIPS final score for 2023 (Medicare payment program): 77.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,494.94
77 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Hunterdon Medical CenterFlemington, NJ · Acute Care Hospitals4 of 5 stars
- Hunterdon Cardiovascular AssociatesFlemington, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
16 cardiovascular disease physician records list a practice address in Flemington
They are 16 of the 978 NPPES records with a practice address in Flemington, and 1,102 cardiovascular disease physician records in New Jersey.
All 16 in Flemington → All 1,102 in New Jersey → Every provider in Flemington →
Other cardiovascular disease physician records in New Jersey
- Michael Aaron, D.O.Neptune, NJ1336129071
- Kariann Abbate, MDRidgewood, NJ1548429582
- Rachel Abboud, DOPaterson, NJ1366931107
- Mary Abed, M.D.Jersey City, NJ1134185432
- Andrew Adelsheimer, MDNew Providence, NJ1881154235
- Baback Adibi, M.D.Teaneck, NJ1164491346
- Irfan AdmaniEdgewater, NJ1043228588
- Ashish Agarwal, MDRobbinsville, NJ1821174483
- Ashoke Agarwal, MD FACCPaterson, NJ1780649608
- Shashi Agarwal, M.D.East Orange, NJ1558416099
Common questions
What is Glen Erik Tonnessen, MD's NPI number?
Glen Erik Tonnessen, MD's National Provider Identifier (NPI) is 1154387389, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Glen Erik Tonnessen, MD located?
The NPPES record lists a practice address at 1100 Wescott Drive, Flemington, NJ, 08822. Phone: (908) 788-1710. Providers update this record themselves, so call before visiting.
How can I verify Glen Erik Tonnessen, MD's license?
NPPES lists New Jersey license number MA055129, 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 Glen Erik Tonnessen, MD prescribe under Medicare Part D?
In 2024, Glen Erik Tonnessen, MD had 2,353 Medicare Part D claims for 258 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Glen Erik Tonnessen, MD's MIPS final score?
The 2023 MIPS final score is 77.7 of 100, reported for the practice group. 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.