Jonathan David Lowenthal, MD
Internal Medicine Physician · Prince Frederick, MD
Jonathan David Lowenthal, MD is an internal medicine physician with a practice address in Prince Frederick, Maryland, and NPI 1861553711, issued on Dec 13, 2006. Check the license (Maryland D33123, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Jonathan David Lowenthal
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D33123 MD
Self-reported in NPPES; status is on the state search - Practice location
- 985 Prince Frederick Blvd Ste 201, Prince Frederick, MD 20678
- Phone
- (410) 535-2005
- Enumerated
- Dec 13, 2006
- Record last updated
- Jul 21, 2022
- Fax
- (410) 535-4850
- Medicaid ID
- 394841200 MD
- Medicare enrollment
- Enrolled (PECOS I20101026001160); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 985 Prince Frederick Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Berg, M.D.Internal Medicine Physician1346315157
- Elizabeth Bissett, CRNPGerontology Nurse Practitioner1982097473
- Jennifer Edwards, LCPCProfessional Counselor1679244776
- Jonathan Fears, MDAllergy & Immunology (Internal Medicine) Physician1083763726
- Catherine Heilig, CRNPFamily Nurse Practitioner1982759411
- Jessica Jones, PACPhysician Assistant1770837510
Verify Jonathan David Lowenthal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D33123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
8,052 Medicare Part D claims for 558 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 89 claims were for opioids.
Most prescribed
- Amlodipine Besylate438 claims
- Atorvastatin Calcium396 claims
- Losartan Potassium382 claims
- Metformin Hcl232 claims
- Levothyroxine Sodium219 claims
- Pantoprazole Sodium201 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): 88 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).
Bills Medicare through one group practice
- Calvert Internal Medicine Group, PADunkirk, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan David Lowenthal among 3,904 internal medicine physician records in Maryland
Jonathan David Lowenthal, MD is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1982 · median 2003 among the 2,445 with a school on file
- Record last updated2022 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 internal medicine physician records list a practice address in Prince Frederick
They are 15 of the 663 NPPES records with a practice address in Prince Frederick, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Prince Frederick → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Barth, MDPrince Frederick, MD 206781164571741
- Eric Berg, M.D.Prince Frederick, MD 206781346315157
- Stephanie Carpenter, MDPrince Frederick, MD 206781871754499
- Viplav DeogaonkarPrince Frederick, MD 206781609339050
- Ikenna Ihim, MDPrince Frederick, MD 206781679955066
- Parul Jani, M.D.Prince Frederick, MD 206781174527501
- Charles Judge, M.D.Prince Frederick, MD 206781821147489
- Nayantara Mendonca, MDPrince Frederick, MD 206781952453359
Common questions
What is Jonathan David Lowenthal, MD's NPI number?
Jonathan David Lowenthal, MD's National Provider Identifier (NPI) is 1861553711, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan David Lowenthal, MD located?
The NPPES record lists a practice address at 985 Prince Frederick Blvd Ste 201, Prince Frederick, MD, 20678. Phone: (410) 535-2005. Providers update this record themselves, so call before visiting.
How can I verify Jonathan David Lowenthal, MD's license?
NPPES lists Maryland license number D33123, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jonathan David Lowenthal, MD prescribe under Medicare Part D?
In 2024, Jonathan David Lowenthal, MD had 8,052 Medicare Part D claims for 558 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jonathan David Lowenthal, MD's MIPS final score?
The 2023 MIPS final score is 88 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.