Dr. Jonathan Klein, MD
- Part D claims, 2021
- 46
- Industry payments
- $24
- Medical group
- 1
- Insurance carriers
- 1
- State licenses
- 15
- Practice address
- 1838 Greene Tree Rd, Pikesville, MD 21208-6391
- Practice phone
- Call (410) 484-9595
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Klein's 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 Klein is a pulmonologist in Pikesville, Maryland
Dr. Klein practices with ValleyOrtho - Aspen, a medical group.
Dr. Klein's NPI, 1417998493, was assigned on June 9, 2006. Dr. Klein graduated from Feinberg School of Medicine in 1985. Dr. Klein's Maryland license number on file is D41829.
- NPI
- 1417998493NPI Registry (opens in a new tab)
- NPI enumeration date
- June 9, 2006
- NPI status
- Active
- Practice phone
- (410) 484-9595
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Jonathan Klein's practice address is in Pikesville, Maryland
Dr. Klein's practice address in the NPI Registry is 1838 Greene Tree Rd, Pikesville, MD 21208-6391. The practice phone is (410) 484-9595.
- NPI Registry address1838 Greene Tree Rd, Pikesville, MD 21208-6391Phone(410) 484-9595
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan Klein is affiliated with 1 medical group
Dr. Klein is part of ValleyOrtho - Aspen, a medical group in Aspen, Colorado.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jonathan Klein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klein practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ValleyOrtho - Aspen | 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 ValleyOrtho - Aspen and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan Klein is one of 281 pulmonologists in Maryland
Pulmonary disease is Dr. Klein's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Klein is board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Klein's licenses on file in 15 states: Maryland, South Dakota, Michigan, Colorado, Florida, Texas, Arkansas, Arizona, Iowa, Illinois, Massachusetts, Missouri, Mississippi, North Carolina and North Dakota.
Specialties and state licenses
- Pulmonary disease, MarylandPrimary
- South Dakota license
- Michigan license
- Colorado license
- Florida license
- Texas license
- Arkansas license
- Arizona license
- Iowa license
- Illinois license
- Massachusetts license
- Missouri license
- Mississippi license
- North Carolina license
- North Dakota license
Pulmonologists near Dr. Klein
Counts of pulmonologists 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 Klein's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Klein's median patient age at 71, with 61% women.
Dr. Klein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. Jonathan Klein wrote 46 Medicare Part D claims in 2021
In 2021, Dr. Klein wrote 46 Medicare Part D claims. They cover 4 drugs, with $6,577 in total drug cost. In 2020, CMS named 61 claims across 5 drugs.
Dr. Klein's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 612021: 4625%
Drugs named by CMS: 4 in 2021, 5 in 2020.
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 Klein received $24 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Klein from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Inova Labs Inc paid the most, $24.
Companies that paid Dr. Klein the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan Klein graduated from Feinberg School of Medicine
Dr. Klein graduated from Feinberg School of Medicine in 1985.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Jonathan Klein accepts plans from 1 insurance carrier
Dr. Klein is in network with 1 carrier, including AK State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- AK State Medicaid
Source: Dmand AI Insurance Network Data
Sources for Dr. Jonathan Klein'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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 Klein
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 Klein's NPI number?
Dr. Jonathan Klein's NPI number is 1417998493. It was assigned on June 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Klein?
Dr. Jonathan Klein is a pulmonologist in Pikesville, Maryland. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Jonathan Klein practice?
Dr. Klein practices at 1838 Greene Tree Rd, Pikesville, MD 21208-6391. Dr. Klein's primary practice is ValleyOrtho - Aspen, a medical group.
What is Dr. Jonathan Klein's office phone number?
The practice phone on file for Dr. Klein is (410) 484-9595.
What is Dr. Jonathan Klein's medical license number?
Dr. Klein's Maryland license number on file is D41829, one of the licenses on file in 15 states.
Which states has Dr. Jonathan Klein been licensed in?
Dmand AI has state licenses on file for Dr. Klein in Maryland (1991 to 2016), South Dakota, Michigan (2022 to 2028), Colorado (2010 to 2027), Florida (2016 to 2027), Texas (2020 to 2027), Arkansas (2017 to 2026), Arizona (2022 to 2026), Iowa (2014 to 2026), Illinois (2018 to 2026), Massachusetts (2022 to 2026), Missouri (2014 to 2026), Mississippi (2018 to 2026), North Carolina (2016 to 2026) and North Dakota (2016 to 2026).
What medical group is Dr. Jonathan Klein part of?
Dr. Klein is part of ValleyOrtho - Aspen in Aspen, Colorado.
Is Dr. Jonathan Klein board certified?
Yes. Dr. Klein is board certified in critical care medicine by the American Board of Internal Medicine.
Where did Dr. Jonathan Klein go to medical school?
Dr. Klein graduated from Feinberg School of Medicine in 1985.
What drugs does Dr. Jonathan Klein prescribe most?
In 2021 Medicare Part D data, Dr. Klein's most prescribed drugs by claims were Xarelto, Levothyroxine Sodium and Rivastigmine.
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Has Dr. Jonathan Klein received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Klein from 1 company from 2016 to 2016. The largest total came from Inova Labs Inc.
How long has Dr. Jonathan Klein been practicing?
Dr. Klein graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Jonathan Klein accept?
Dr. Klein is in network with 1 carrier, including AK State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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