Dr. John W. Baddley, MD
- Medicare services, 2024
- 175
- Medicare patients, 2024
- 97
- Part D claims, 2024
- 48
- Publications
- 148
- Hospital affiliations
- 2
- Practice address
- 5759 Cedar Lane, Columbia, MD 21044
- Practice phone
- Call (443) 718-3738
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Johns Hopkins Surgery Centers - Howard County
Surgery Center - Medicare-Certified · Columbia, Maryland
Find Dr. Baddley'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. John W. Baddley is an infectious disease specialist in Columbia, Maryland
Dr. Baddley practices at Johns Hopkins Surgery Centers - Howard County in Columbia, Maryland.
Dr. Baddley's NPI, 1801841333, was assigned on May 23, 2006. Dr. Baddley graduated from Louisiana State University School of Medicine in New Orleans in 1995. Dr. Baddley's Alabama license number on file is 21647.
- NPI
- 1801841333NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022280247
- NPI enumeration date
- May 23, 2006
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (443) 718-3738
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John W. Baddley practices at Johns Hopkins Surgery Centers - Howard County in Columbia, Maryland
Dr. Baddley's primary practice is Johns Hopkins Surgery Centers - Howard County, at 5759 Cedar Lane, Columbia, MD 21044. The practice phone is (443) 718-3738.
- Johns Hopkins Surgery Centers - Howard County5759 Cedar Lane, Columbia, MD 21044Phone(443) 718-3738
Source: Dmand AI Affiliation Data
Dr. John W. Baddley is affiliated with 3 sites of care and 3 medical groups
Dr. Baddley's primary practice is Johns Hopkins Surgery Centers - Howard County in Columbia, Maryland. Dr. Baddley is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Dr. Baddley to 1 more hospital and 2 medical groups, 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 W. Baddley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baddley practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Johns Hopkins Surgery Centers - Howard County | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John W. Baddley is one of 303 infectious disease specialists in Maryland
Infectious disease is Dr. Baddley's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Baddley is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Baddley's licenses on file in 3 states: Alabama, Maryland and Louisiana.
Specialties and state licenses
- Infectious disease, AlabamaPrimary
- Maryland license
- Louisiana license
Clinical focus
Dmand AI lists acute skin infection, cold sores or genital herpes, pneumonia, UTI and yeast infection among the conditions Dr. Baddley treats.
Infectious disease specialists near Dr. Baddley
Counts of infectious disease specialists 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 W. Baddley billed Medicare for 175 services in 2024
CMS data shows 175 Medicare services from Dr. Baddley across 6 procedure codes in 2024, for 97 Medicare patients. Medicare paid $18,599 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Baddley's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3512024: 17550%
Dr. Baddley compared with the Maryland median for infectious disease specialists, 2024
- Dr. Baddley
- Maryland median
- Medicare services
- 175vs 21719% below
- Medicare patients
- 97vs 12623% below
- Part D claims
- 59vs 9840% below
Medians across 250 infectious disease specialists in Maryland with Dmand AI profiles that report each measure.
Dr. Baddley'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Baddley and other infectious disease specialists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John W. Baddley treated 97 Medicare patients in 2024, average age 63
CMS counts 97 Medicare patients who saw Dr. Baddley in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 4.20, 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. Baddley's median patient age at 69, with 47% women.
Dr. Baddley's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Baddley's Medicare patients by sex, 2024
- Women4445%
- Men5355%
Chronic conditions among Dr. Baddley's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease63%
- Diabetes52%
- Arthritis46%
- Ischemic heart disease46%
- Heart failure43%
- Anxiety41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Baddley'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
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John W. Baddley wrote 48 Medicare Part D claims in 2024
In 2024, Dr. Baddley wrote 48 Medicare Part D claims for 15 patients. 100% of them were for generic drugs. They cover 4 drugs, with $3,143 in total drug cost. In 2016, CMS named 36 claims across 3 drugs.
Dr. Baddley's most prescribed drugs by claims, 2019
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. Baddley's Part D claims, 2024
- Antibiotics60%29 of 48 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, 2016 to 2019
- 2016
- 2019
- Claims for drugs CMS names
- 2016: 362019: 5964%
Drugs named by CMS: 4 in 2019, 3 in 2016.
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. John W. Baddley offers telehealth to Medicare patients
CMS lists Dr. Baddley as offering telehealth.
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John W. Baddley has 148 publications on record
Dmand AI links 148 papers to Dr. Baddley, published from 2001 to 2025. 2022 was the busiest year, with 7. The most frequent topics are Antifungal Agents, Organ Transplantation and Antirheumatic Agents. Dr. Baddley has published most often in Clin Infect Dis. Dr. Baddley's most frequent co-authors are Jeffrey R. Curtis, MD, Peter G. Pappas and Djordje Atanackovic, MD.
Dr. Baddley's papers by year, 2016 to 2025
Topics Dr. Baddley writes about most
- Antifungal Agents
- Organ Transplantation
- Antirheumatic Agents
- Arthritis, Rheumatoid
- Immunocompromised Host
- COVID-19
- Histoplasmosis
- Transplant Recipients
Dr. Baddley's most frequent co-authors
- Jeffrey R. Curtis, MD22 shared papers
- Peter G. Pappas19 shared papers
- Djordje Atanackovic, MD7 shared papers
Recent publications by Dr. Baddley
See who Dr. Baddley researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Baddley works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John W. Baddley received $133,655 in industry payments from 2016 to 2025
CMS Open Payments shows 72 general payments to Dr. Baddley from 5 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 93% of the total. Eli Lilly and Company paid the most, $54,869. It also lists 2 research payments totaling $6,834 in 2025.
General payments to Dr. Baddley by program year, 2016 to 2025
General payments to Dr. Baddley by kind, 2016 to 2025
- Consulting fees$123,77393%
- Honoraria$8,5006%
- Travel and lodging$1,1321%
- Food and beverage$2500%
Companies that paid Dr. Baddley the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John W. Baddley graduated from Louisiana State University School of Medicine in New Orleans
Dr. Baddley graduated from Louisiana State University School of Medicine in New Orleans in 1995.
- Medical school
- Board certified in infectious disease
Source: Dmand AI Professional Profile Data
Dr. John W. Baddley accepts plans from 10 insurance carriers
Dr. Baddley is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- CareFirst BlueCross BlueShield
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- +2 more carriersWith a free account
Plan types Dr. Baddley accepts, by number of carriers
- Medicare9
- PPO7
- HMO5
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. John W. Baddley'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) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. John W. Baddley
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 W. Baddley's NPI number?
Dr. John W. Baddley's NPI number is 1801841333. It was assigned on May 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John W. Baddley?
Dr. John W. Baddley is an infectious disease specialist in Columbia, Maryland. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. John W. Baddley practice?
Dr. Baddley practices at 5759 Cedar Lane, Columbia, MD 21044. Dr. Baddley's primary practice is Johns Hopkins Surgery Centers - Howard County in Columbia, Maryland. Dmand AI also links Dr. Baddley to 1 hospital and 2 medical groups.
What is Dr. John W. Baddley's office phone number?
The practice phone on file for Dr. Baddley is (443) 718-3738.
What is Dr. John W. Baddley's medical license number?
Dr. Baddley's Alabama license number on file is 21647, one of the licenses on file in 3 states.
Which states has Dr. John W. Baddley been licensed in?
Dmand AI has state licenses on file for Dr. Baddley in Alabama (1998 to 2020), Maryland (2019 to 2026) and Louisiana (1996 to 2003).
Which hospitals is Dr. John W. Baddley affiliated with?
Dr. Baddley is affiliated with The Johns Hopkins Hospital. Dmand AI links Dr. Baddley to 1 more hospital.
What medical group is Dr. John W. Baddley part of?
Dr. Baddley is linked to Johns Hopkins University. Dmand AI links Dr. Baddley to 2 more medical groups.
Does Dr. John W. Baddley accept Medicare?
Yes. CMS data shows Dr. Baddley billed Medicare for 175 services in 2024.
Does Dr. John W. Baddley offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Baddley as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. John W. Baddley see?
CMS counts 97 Medicare patients who saw Dr. Baddley in 2024, with an average age of 63.
Is Dr. John W. Baddley board certified?
Yes. Dr. Baddley is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. John W. Baddley bill to Medicare?
In 2024, Dr. Baddley's most billed Medicare services were hospital inpatient care (99233), office visit, established patient (99215) and hospital inpatient care (99223).
Where did Dr. John W. Baddley go to medical school?
Dr. Baddley graduated from Louisiana State University School of Medicine in New Orleans in 1995.
What drugs does Dr. John W. Baddley prescribe most?
In 2019 Medicare Part D data, Dr. Baddley's most prescribed drugs by claims were Sulfamethoxazole-Trimethoprim, Azithromycin and Doxycycline Hyclate.
Has Dr. John W. Baddley received payments from drug or device companies?
CMS Open Payments shows $133,655 in general payments to Dr. Baddley from 5 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. John W. Baddley been practicing?
Dr. Baddley graduated from medical school in 1995, 31 years ago.
Does Dr. John W. Baddley do research?
Dmand AI links 148 publications to Dr. Baddley, published from 2001 to 2025.
Who does Dr. John W. Baddley publish with?
Dr. Baddley's most frequent co-authors are Jeffrey R. Curtis, MD (22 shared papers), Peter G. Pappas (19 shared papers) and Djordje Atanackovic, MD (7 shared papers).
What insurance does Dr. John W. Baddley accept?
Dr. Baddley is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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