Dr. Justin Hahn, DO
- Medicare services, 2024
- 1,349
- Medicare patients, 2024
- 459
- Part D claims, 2024
- 1,557
- Hospital affiliations
- 3
- Industry payments
- $170
- Practice address
- 4924 Campbell Blvd Suite 250, Nottingham, MD 21236
- Practice phone
- Call (410) 321-1124
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Johns Hopkins Surgery Centers - White Marsh
Surgery Center - Medicare-Certified · Nottingham, Maryland
Find Dr. Hahn'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. Justin Hahn is an internist in Nottingham, Maryland
Dr. Hahn practices at Johns Hopkins Surgery Centers - White Marsh in Nottingham, Maryland.
Dr. Hahn's NPI, 1609404458, was assigned on March 28, 2020. Dr. Hahn graduated from Nova Southeastern College of Osteo Medicine in 2020. Dr. Hahn holds Maryland license H96299.
- NPI
- 1609404458NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769846542
- NPI enumeration date
- March 28, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (410) 321-1124
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Justin Hahn practices at Johns Hopkins Surgery Centers - White Marsh in Nottingham, Maryland
Dr. Hahn's primary practice is Johns Hopkins Surgery Centers - White Marsh, at 4924 Campbell Blvd Suite 250, Nottingham, MD 21236. The practice phone is (410) 321-1124.
- Johns Hopkins Surgery Centers - White Marsh4924 Campbell Blvd Suite 250, Nottingham, MD 21236Phone(410) 321-1124
Source: Dmand AI Affiliation Data
Dr. Justin Hahn is affiliated with 7 sites of care and 1 medical group
Dr. Hahn's primary practice is Johns Hopkins Surgery Centers - White Marsh in Nottingham, Maryland. Dr. Hahn is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins Community Physicians. Dmand AI also links Dr. Hahn to 2 more hospitals, 2 home health agencies 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. Justin Hahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hahn practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Johns Hopkins Surgery Centers - White Marsh | Available with a free account |
| +6 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Justin Hahn is one of 3,320 internists in Maryland
Internal medicine is Dr. Hahn's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hahn is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Hahn
Counts of internists 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. Justin Hahn billed Medicare for 1,349 services in 2024
CMS data shows 1,349 Medicare services from Dr. Hahn across 19 procedure codes in 2024, for 459 Medicare patients. Medicare paid $115,056 for them. Every service was in an office.
Dr. Hahn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1392024: 807481%
- Other services
- 2023: 272024: 237778%
- Surgery
- 2023: 02024: 168
- Tests and treatments
- 2023: 02024: 113
- Lab and pathology
- 2023: 02024: 24
Dr. Hahn compared with the Maryland median for internists, 2024
- Dr. Hahn
- Maryland median
- Medicare services
- 1,349vs 6562.1 times
- Medicare patients
- 459vs 25183% above
- Part D claims
- 1,061vs 3093.4 times
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Hahn'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. Hahn?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hahn and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Justin Hahn treated 459 Medicare patients in 2024, average age 74
CMS counts 459 Medicare patients who saw Dr. Hahn in 2024. The largest group is 65 to 74, with 209 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 11% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hahn's median patient age at 67, with 48% women.
Dr. Hahn's Medicare patients by age, 2024
Dr. Hahn's Medicare patients by sex, 2024
- Women27159%
- Men18841%
Chronic conditions among Dr. Hahn's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis42%
- Diabetes25%
- Ischemic heart disease23%
- Anxiety20%
- Mood disorders20%
- Cancer19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Justin Hahn wrote 1,557 Medicare Part D claims in 2024
In 2024, Dr. Hahn wrote 1,557 Medicare Part D claims for 293 patients. 90% of them were for generic drugs. CMS names the drug for 1,061 of them, across 34 drugs with 11 or more claims each, at $30,043 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Hahn's Part D claims by kind of drug, 2024
- Generic1,409 claims90%
- Brand-name135 claims9%
- Other13 claims1%
Dr. Hahn'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. Hahn's Part D claims, 2024
- Antibiotics5%71 of 1,557 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: 122024: 1,0618742%
Drugs named by CMS: 34 in 2024, 1 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. Justin Hahn offers telehealth to Medicare patients
Dr. Hahn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hahn as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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. Justin Hahn received $170 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Hahn from 2 drug and device companies in 2024. Speaker and faculty fees make up the largest share, 88% of the total. Eko Devices, Inc. paid the most, $150.
General payments to Dr. Hahn by kind, 2024 to 2024
- Speaker and faculty fees$15088%
- Food and beverage$2012%
Companies that paid Dr. Hahn the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Justin Hahn graduated from Nova Southeastern College of Osteo Medicine
Dr. Hahn graduated from Nova Southeastern College of Osteo Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Justin Hahn'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) |
| 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. Justin Hahn
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. Justin Hahn's NPI number?
Dr. Justin Hahn's NPI number is 1609404458. It was assigned on March 28, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Justin Hahn?
Dr. Justin Hahn is an internist in Nottingham, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Justin Hahn practice?
Dr. Hahn practices at 4924 Campbell Blvd Suite 250, Nottingham, MD 21236. Dr. Hahn's primary practice is Johns Hopkins Surgery Centers - White Marsh in Nottingham, Maryland. Dmand AI also links Dr. Hahn to 2 hospitals, 2 home health agencies and 1 group practice or clinic.
What is Dr. Justin Hahn's office phone number?
The practice phone on file for Dr. Hahn is (410) 321-1124.
What is Dr. Justin Hahn's medical license number?
Dr. Hahn holds Maryland license H96299.
Which hospitals is Dr. Justin Hahn affiliated with?
Dr. Hahn is affiliated with The Johns Hopkins Hospital. Dmand AI links Dr. Hahn to 2 more hospitals.
What medical group is Dr. Justin Hahn part of?
Dr. Hahn is linked to Johns Hopkins Community Physicians.
Does Dr. Justin Hahn accept Medicare?
Yes. CMS data shows Dr. Hahn billed Medicare for 1,349 services in 2024, and Dr. Hahn accepts Medicare assignment.
Does Dr. Justin Hahn offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hahn as offering telehealth services.
How many Medicare patients does Dr. Justin Hahn see?
CMS counts 459 Medicare patients who saw Dr. Hahn in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Justin Hahn bill to Medicare?
In 2024, Dr. Hahn's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G0439).
Where did Dr. Justin Hahn go to medical school?
Dr. Hahn graduated from Nova Southeastern College of Osteo Medicine in 2020.
What drugs does Dr. Justin Hahn prescribe most?
In 2024 Medicare Part D data, Dr. Hahn's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Justin Hahn received payments from drug or device companies?
CMS Open Payments shows $170 in general payments to Dr. Hahn from 2 companies from 2024 to 2024. The largest total came from Eko Devices, Inc.
How long has Dr. Justin Hahn been practicing?
Dr. Hahn graduated from medical school in 2020, 6 years ago.
Selling to internal medicine practices?
See internists in Maryland by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card