Dr. Jonathan Allen Webster, MD
- Medicare services, 2024
- 524
- Medicare patients, 2024
- 124
- Part D claims, 2024
- 425
- MIPS score, 2024
- 83
- Hospital affiliations
- 1
- Practice address
- 600 N Wolfe St, Baltimore, MD 21287
- Practice phone
- Call (855) 662-3017
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Johns Hopkins Hospital Nelson/Harvey Building
Baltimore, Maryland
Find Dr. Webster's professional email, personal email and mobile number
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Dr. Jonathan Allen Webster is a medical oncologist in Baltimore, Maryland
Dr. Webster practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland.
Dr. Webster's NPI, 1366731549, was assigned on March 29, 2011. Dr. Webster graduated from Stanford University School of Medicine in 2011. Dr. Webster holds Maryland license D78073.
- NPI
- 1366731549NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173773488
- NPI enumeration date
- March 29, 2011
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (855) 662-3017
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan Allen Webster practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland
Dr. Webster's primary practice is Johns Hopkins Hospital Nelson/Harvey Building, at 600 N Wolfe St, Baltimore, MD 21287 in Baltimore City. The practice phone is (855) 662-3017.
- Johns Hopkins Hospital Nelson/Harvey Building600 N Wolfe St, Baltimore, MD 21287 · Baltimore CityPhone(855) 662-3017
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan Allen Webster is affiliated with 4 sites of care and 2 medical groups
Dr. Webster's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Dr. Webster is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Dr. Webster to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jonathan Allen Webster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Webster practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Johns Hopkins Hospital Nelson/Harvey Building | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan Allen Webster is one of 157 medical oncologists in Maryland
Medical oncology is Dr. Webster's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Webster is licensed in Maryland.
Specialties and state licenses
- Medical oncology, MarylandPrimary
Medical oncologists near Dr. Webster
Counts of medical oncologists 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 Allen Webster billed Medicare for 524 services in 2024
CMS data shows 524 Medicare services from Dr. Webster across 7 procedure codes in 2024, for 124 Medicare patients. Medicare paid $40,861 for them.
Dr. Webster's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3922024: 3647%
- Other services
- 2023: 02024: 133
- Lab and pathology
- 2023: 652024: 2758%
Where Dr. Webster's Medicare services took place, 2024
- In an office387%
- In a facility48693%
Dr. Webster compared with the Maryland median for medical oncologists, 2024
- Dr. Webster
- Maryland median
- Medicare services
- 524vs 42224% above
- Medicare patients
- 124vs 14313% below
- Part D claims
- 232vs 11897% above
Medians across 124 medical oncologists in Maryland with Dmand AI profiles that report each measure.
Dr. Webster'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Allen Webster treated 124 Medicare patients in 2024, average age 71
CMS counts 124 Medicare patients who saw Dr. Webster in 2024. The largest group is 75 to 84, with 51 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 3.39, 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. Webster's median patient age at 71, with 46% women.
Dr. Webster's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Webster's Medicare patients by sex, 2024
- Women6149%
- Men6351%
Chronic conditions among Dr. Webster's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Chronic kidney disease40%
- Anxiety35%
- Diabetes29%
- Mood disorders27%
- Depression26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Webster'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
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan Allen Webster wrote 425 Medicare Part D claims in 2024
In 2024, Dr. Webster wrote 425 Medicare Part D claims for 54 patients. 67% of them were for generic drugs. CMS names the drug for 232 of them, across 11 drugs with 11 or more claims each, at $1,558,786 in total drug cost. In 2023, CMS named 224 claims across 11 drugs.
Dr. Webster's Part D claims by kind of drug, 2024
- Generic284 claims67%
- Brand-name141 claims33%
Dr. Webster's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Webster's Part D claims, 2024
- Antibiotics12%49 of 425 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2242024: 2324%
Drugs named by CMS: 11 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jonathan Allen Webster scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Webster for performance year 2024, reported as part of a group. CMS lists Dr. Webster as offering telehealth.
- Offers telehealth
- Yes
Dr. Webster's MIPS scores, performance year 2024
- 83of 100Final score
- 73.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Jonathan Allen Webster received $50,636 in industry payments from 2017 to 2025
CMS Open Payments shows 56 general payments to Dr. Webster from 13 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 39% of the total. Pfizer Inc. paid the most, $12,268.
General payments to Dr. Webster by program year, 2017 to 2025
General payments to Dr. Webster by kind, 2017 to 2025
- Consulting fees$19,79639%
- Travel and lodging$12,08224%
- Speaker and faculty fees$8,19016%
- Honoraria$8,11016%
- Other$2,4575%
Companies that paid Dr. Webster 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. Jonathan Allen Webster graduated from Stanford University School of Medicine
Dr. Webster graduated from Stanford University School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan Allen Webster'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)Clinician Public Reporting: Overall MIPS Performance (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. Jonathan Allen Webster
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 Allen Webster's NPI number?
Dr. Jonathan Allen Webster's NPI number is 1366731549. It was assigned on March 29, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Allen Webster?
Dr. Jonathan Allen Webster is a medical oncologist in Baltimore, Maryland. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Jonathan Allen Webster practice?
Dr. Webster practices at 600 N Wolfe St, Baltimore, MD 21287. Dr. Webster's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Dmand AI also links Dr. Webster to 2 group practices and clinics and 1 medical group.
What is Dr. Jonathan Allen Webster's office phone number?
The practice phone on file for Dr. Webster is (855) 662-3017.
What is Dr. Jonathan Allen Webster's medical license number?
Dr. Webster holds Maryland license D78073.
Which hospitals is Dr. Jonathan Allen Webster affiliated with?
Dr. Webster is affiliated with The Johns Hopkins Hospital.
What medical group is Dr. Jonathan Allen Webster part of?
Dr. Webster is linked to Johns Hopkins University. Dmand AI links Dr. Webster to 1 more medical group.
Does Dr. Jonathan Allen Webster accept Medicare?
Yes. CMS data shows Dr. Webster billed Medicare for 524 services in 2024.
Does Dr. Jonathan Allen Webster offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Webster as offering telehealth services.
What is Dr. Jonathan Allen Webster's MIPS score?
Dr. Webster's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Jonathan Allen Webster see?
CMS counts 124 Medicare patients who saw Dr. Webster in 2024, with an average age of 71.
What services does Dr. Jonathan Allen Webster bill to Medicare?
In 2024, Dr. Webster's most billed Medicare services were hospital inpatient care (99233), office visit, established patient (99215) and medicare service (G2211).
Where did Dr. Jonathan Allen Webster go to medical school?
Dr. Webster graduated from Stanford University School of Medicine in 2011.
What drugs does Dr. Jonathan Allen Webster prescribe most?
In 2024 Medicare Part D data, Dr. Webster's most prescribed drugs by claims were Sprycel, Valacyclovir and Venclexta.
Has Dr. Jonathan Allen Webster received payments from drug or device companies?
CMS Open Payments shows $50,636 in general payments to Dr. Webster from 13 companies from 2017 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Jonathan Allen Webster been practicing?
Dr. Webster graduated from medical school in 2011, 15 years ago.
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