Dr. John Werner, MD
- Medicare services, 2024
- 23,219
- Medicare patients, 2024
- 3,587
- Hospital affiliations
- 6
- Industry payments
- $2,898
- Medical groups
- 8
- Practice address
- 6701 North Charles Street, Baltimore, MD 21204
- Practice phone
- Call (443) 849-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Werner's professional email, personal email and mobile number
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Dr. John Werner is a diagnostic radiologist in Towson, Maryland
Dr. Werner practices at Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare.
Dr. Werner's NPI, 1710120175, was assigned on April 15, 2009. Dr. Werner graduated from George Washington University School of Medicine in 2008. Dr. Werner holds Maryland license D78211.
- NPI
- 1710120175NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739317967
- NPI enumeration date
- April 15, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (443) 849-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Werner practices at Greater Baltimore Medical Center in Baltimore, Maryland
Dr. Werner's primary practice is Greater Baltimore Medical Center, at 6701 North Charles Street, Baltimore, MD 21204 in Baltimore County. The practice phone is (443) 849-2000.
- Greater Baltimore Medical Center6701 North Charles Street, Baltimore, MD 21204 · Baltimore CountyPhone(443) 849-2000
Source: Dmand AI Affiliation Data
Dr. John Werner is affiliated with 7 sites of care and 8 medical groups
Dr. Werner's primary practice is Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare. Dr. Werner is also affiliated with University of Maryland St. Joseph Medical Center. The medical group on file is Advanced Radiology. Dmand AI also links Dr. Werner to 4 more hospitals, 7 medical groups and 1 group practice or clinic, 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. John Werner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Werner practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greater Baltimore Medical Center | Available with a free account |
| +6 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Werner is one of 626 diagnostic radiologists in Maryland
Diagnostic radiology is Dr. Werner's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Werner is licensed in Maryland.
Specialties and state licenses
- Diagnostic radiology, MarylandPrimary
Diagnostic radiologists near Dr. Werner
Counts of diagnostic radiologists 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. John Werner billed Medicare for 23,219 services in 2024
CMS data shows 23,219 Medicare services from Dr. Werner across 62 procedure codes in 2024, for 3,587 Medicare patients. Medicare paid $219,895 for them.
Dr. Werner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 26,9152024: 19,04029%
- Imaging
- 2023: 4,0562024: 3,7348%
- Surgery
- 2023: 4052024: 35413%
- Tests and treatments
- 2023: 1482024: 9139%
Where Dr. Werner's Medicare services took place, 2024
- In an office21,25992%
- In a facility1,9608%
Dr. Werner compared with the Maryland median for diagnostic radiologists, 2024
- Dr. Werner
- Maryland median
- Medicare services
- 23,219vs 5,2414.4 times
- Medicare patients
- 3,587vs 1,94485% above
Medians across 602 diagnostic radiologists in Maryland with Dmand AI profiles that report each measure.
Dr. Werner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Werner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Werner and other diagnostic radiologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Werner treated 3,587 Medicare patients in 2024, average age 75
CMS counts 3,587 Medicare patients who saw Dr. Werner in 2024. The largest group is 65 to 74, with 1,456 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.64, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Werner's median patient age at 69, with 56% women.
Dr. Werner's Medicare patients by age, 2024
Dr. Werner's Medicare patients by sex, 2024
- Women2,20161%
- Men1,38639%
Chronic conditions among Dr. Werner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes39%
- Ischemic heart disease38%
- Chronic kidney disease33%
- Mood disorders31%
- Anxiety30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Werner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John Werner takes part in Medicare
Dr. Werner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Werner received $2,898 in industry payments from 2017 to 2025
CMS Open Payments shows 24 general payments to Dr. Werner from 14 drug and device companies from 2017 to 2025. Travel and lodging make up the largest share, 85% of the total. Merit Medical Systems Inc paid the most, $1,294.
General payments to Dr. Werner by program year, 2017 to 2025
General payments to Dr. Werner by kind, 2017 to 2025
- Travel and lodging$2,46685%
- Food and beverage$43115%
Companies that paid Dr. Werner the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Werner graduated from George Washington University School of Medicine
Dr. Werner graduated from George Washington University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Werner'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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. John Werner
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. John Werner's NPI number?
Dr. John Werner's NPI number is 1710120175. It was assigned on April 15, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. John Werner?
Dr. John Werner is a diagnostic radiologist in Towson, Maryland. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. John Werner practice?
Dr. Werner practices at 6701 North Charles Street, Baltimore, MD 21204. Dr. Werner's primary practice is Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare. Dmand AI also links Dr. Werner to 4 hospitals, 7 medical groups and 1 group practice or clinic.
What is Dr. John Werner's office phone number?
The practice phone on file for Dr. Werner is (443) 849-2000.
What is Dr. John Werner's medical license number?
Dr. Werner holds Maryland license D78211.
Which hospitals is Dr. John Werner affiliated with?
Dr. Werner practices at Greater Baltimore Medical Center in Baltimore, Maryland. Dr. Werner is also affiliated with University of Maryland St. Joseph Medical Center. Dmand AI links Dr. Werner to 4 more hospitals.
What medical group is Dr. John Werner part of?
Dr. Werner is linked to Advanced Radiology. Dmand AI links Dr. Werner to 7 more medical groups.
Does Dr. John Werner accept Medicare?
Yes. CMS data shows Dr. Werner billed Medicare for 23,219 services in 2024, and Dr. Werner accepts Medicare assignment.
How many Medicare patients does Dr. John Werner see?
CMS counts 3,587 Medicare patients who saw Dr. Werner in 2024, with an average age of 75.
What services does Dr. John Werner bill to Medicare?
In 2024, Dr. Werner's most billed Medicare services were medicare temporary code (Q9967), diagnostic imaging (71045) and radiation oncology (77080).
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Where did Dr. John Werner go to medical school?
Dr. Werner graduated from George Washington University School of Medicine in 2008.
Has Dr. John Werner received payments from drug or device companies?
CMS Open Payments shows $2,898 in general payments to Dr. Werner from 14 companies from 2017 to 2025. The largest total came from Merit Medical Systems Inc.
How long has Dr. John Werner been practicing?
Dr. Werner graduated from medical school in 2008, 18 years ago.
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