Dr. Jonathan L. Clemens, MD
- Part D claims, 2016
- 13
- Hospital affiliations
- 1
- Industry payments
- $587
- Medical groups
- 2
- State license
- 1
- Practice address
- 301 Saint Paul Place, Baltimore, MD 21202
- Practice phone
- Call (410) 332-9237
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Clemens' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jonathan L. Clemens is a pediatrician in Baltimore, Maryland
Dr. Clemens practices at Mercy Medical Center in Baltimore, Maryland, part of Mercy Medical Center.
Dr. Clemens' NPI, 1336182419, was assigned on June 14, 2006. Dr. Clemens holds Maryland license D45302.
- NPI
- 1336182419NPI Registry (opens in a new tab)
- NPI enumeration date
- June 14, 2006
- NPI status
- Active
- Practice phone
- (410) 332-9237
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jonathan L. Clemens practices at Mercy Medical Center in Baltimore, Maryland
Dr. Clemens' primary practice is Mercy Medical Center, at 301 Saint Paul Place, Baltimore, MD 21202 in Baltimore City. The practice phone is (410) 332-9237.
- Mercy Medical Center301 Saint Paul Place, Baltimore, MD 21202 · Baltimore CityPhone(410) 332-9237
Source: Dmand AI Affiliation Data
Dr. Jonathan L. Clemens is affiliated with 2 sites of care and 2 medical groups
Dr. Clemens' primary practice is Mercy Medical Center in Baltimore, Maryland, part of Mercy Medical Center. The medical group on file is Mercy Family Care Physicians. Dmand AI also links Dr. Clemens to 1 more community health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan L. Clemens' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clemens practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan L. Clemens is one of 1,376 pediatricians in Maryland
Pediatrics is Dr. Clemens' primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Clemens is licensed in Maryland.
Specialties and state licenses
- Pediatrics, MarylandPrimary
Pediatricians near Dr. Clemens
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jonathan L. Clemens' patients have a median age of 8
Across all payers, Dmand AI patient panel data puts Dr. Clemens' median patient age at 8, with 41% women.
Dr. Clemens' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 8
Patient panel by sex, all payers
- Women41%
- Men59%
Source: Dmand AI Patient Panel Data
Dr. Jonathan L. Clemens wrote 13 Medicare Part D claims in 2016
In 2016, Dr. Clemens wrote 13 Medicare Part D claims. They cover 1 drug, with $13 in total drug cost.
Dr. Clemens' most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jonathan L. Clemens received $587 in industry payments from 2016 to 2025
CMS Open Payments shows 37 general payments to Dr. Clemens from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Cranial Technologies, Inc paid the most, $128.
General payments to Dr. Clemens by program year, 2016 to 2025
Companies that paid Dr. Clemens the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jonathan L. Clemens's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jonathan L. Clemens
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jonathan L. Clemens' NPI number?
Dr. Jonathan L. Clemens' NPI number is 1336182419. It was assigned on June 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan L. Clemens?
Dr. Jonathan L. Clemens is a pediatrician in Baltimore, Maryland. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Jonathan L. Clemens practice?
Dr. Clemens practices at 301 Saint Paul Place, Baltimore, MD 21202. Dr. Clemens' primary practice is Mercy Medical Center in Baltimore, Maryland, part of Mercy Medical Center. Dmand AI also links Dr. Clemens to 1 community health center and 1 medical group.
What is Dr. Jonathan L. Clemens' office phone number?
The practice phone on file for Dr. Clemens is (410) 332-9237.
What is Dr. Jonathan L. Clemens' medical license number?
Dr. Clemens holds Maryland license D45302.
Which hospitals is Dr. Jonathan L. Clemens affiliated with?
Dr. Clemens practices at Mercy Medical Center in Baltimore, Maryland.
What medical group is Dr. Jonathan L. Clemens part of?
Dr. Clemens is linked to Mercy Family Care Physicians. Dmand AI links Dr. Clemens to 1 more medical group.
What drugs does Dr. Jonathan L. Clemens prescribe most?
In 2016 Medicare Part D data, Dr. Clemens' most prescribed drugs by claims were Lisinopril-Hydrochlorothiazide.
Has Dr. Jonathan L. Clemens received payments from drug or device companies?
CMS Open Payments shows $587 in general payments to Dr. Clemens from 11 companies from 2016 to 2025. The largest total came from Cranial Technologies, Inc.
How long has Dr. Jonathan L. Clemens been practicing?
Dr. Clemens' NPI was assigned in 2006.
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