Dr. Jennifer Eunjoo Joh, MD
- Medicare services, 2024
- 490
- Medicare patients, 2024
- 262
- Part D claims, 2024
- 19
- MIPS score, 2024
- 79
- Hospital affiliations
- 1
- Practice address
- 301 Saint Paul Place, Baltimore, MD 21202
- Practice phone
- Call (410) 332-9237
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Joh's professional email, personal email and mobile number
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Dr. Jennifer Eunjoo Joh is a general surgeon in Baltimore, Maryland
Dr. Joh practices at Mercy Medical Center in Baltimore, Maryland, part of Mercy Medical Center.
Dr. Joh's NPI, 1487880852, was assigned on May 29, 2009. Dr. Joh graduated from University of Miami, Lm Miller School of Medicine in 2004. Dr. Joh holds Maryland license D0073837.
- NPI
- 1487880852NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032371224
- NPI enumeration date
- May 29, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 332-9237
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Eunjoo Joh practices at Mercy Medical Center in Baltimore, Maryland
Dr. Joh's primary practice is Mercy Medical Center, at 301 Saint Paul Place, Baltimore, MD 21202 in Baltimore City. The practice phone is (410) 332-9237.
- Mercy Medical Center301 Saint Paul Place, Baltimore, MD 21202 · Baltimore CityPhone(410) 332-9237
Source: Dmand AI Affiliation Data
Dr. Jennifer Eunjoo Joh is affiliated with 2 sites of care and 1 medical group
Dr. Joh's primary practice is Mercy Medical Center in Baltimore, Maryland, part of Mercy Medical Center. The medical group on file is Mercy Personal Physicians Downtown. Dmand AI also links Dr. Joh to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jennifer Eunjoo Joh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Joh practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jennifer Eunjoo Joh is one of 532 general surgeons in Maryland
Surgery is Dr. Joh's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Joh's licenses on file in 3 states: Maryland, Florida and New York.
Specialties and state licenses
- Surgery, MarylandPrimary
- Florida license
- New York license
General surgeons near Dr. Joh
Counts of general surgeons 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. Jennifer Eunjoo Joh billed Medicare for 490 services in 2024
CMS data shows 490 Medicare services from Dr. Joh across 12 procedure codes in 2024, for 262 Medicare patients. Medicare paid $73,778 for them.
Dr. Joh's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2062024: 25222%
- Surgery
- 2023: 692024: 12378%
- Imaging
- 2023: 242024: 61154%
- Tests and treatments
- 2023: 532024: 542%
Where Dr. Joh's Medicare services took place, 2024
- In an office20943%
- In a facility28157%
Dr. Joh compared with the Maryland median for general surgeons, 2024
- Dr. Joh
- Maryland median
- Medicare services
- 490vs 2302.1 times
- Medicare patients
- 262vs 16262% above
- Part D claims
- 12vs 2654% below
Medians across 485 general surgeons in Maryland with Dmand AI profiles that report each measure.
Dr. Joh'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. Joh and other general surgeons in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jennifer Eunjoo Joh treated 262 Medicare patients in 2024, average age 72
CMS counts 262 Medicare patients who saw Dr. Joh in 2024. The largest group is 65 to 74, with 137 patients. 75% of them have cancer, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Joh's median patient age at 68, with 100% women.
Dr. Joh's Medicare patients by age, 2024
Chronic conditions among Dr. Joh's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
- High blood pressure71%
- Arthritis44%
- Diabetes28%
- Anxiety24%
- Osteoporosis24%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Joh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jennifer Eunjoo Joh wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Joh wrote 19 Medicare Part D claims for 11 patients. 95% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $219 in total drug cost. In 2018, CMS named 11 claims across 1 drug.
Dr. Joh's Part D claims by kind of drug, 2024
- Generic18 claims95%
- Brand-name and other1 claims5%
Dr. Joh's most prescribed drugs by claims, 2020
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, 2018 to 2020
- 2018
- 2020
- Claims for drugs CMS names
- 2018: 112020: 129%
Drugs named by CMS: 1 in 2020, 1 in 2018.
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. Jennifer Eunjoo Joh scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Joh for performance year 2024, reported as part of a group. Dr. Joh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of mastectomy by Dr. Joh, more than 73% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Joh's MIPS scores, performance year 2024
- 79of 100Final score
- 56.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Joh ranks in Medicare procedure volume
- Mastectomy
- 73rd percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jennifer Eunjoo Joh received $1,055 in industry payments from 2016 to 2025
CMS Open Payments shows 30 general payments to Dr. Joh from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Genentech, Inc. paid the most, $295.
General payments to Dr. Joh by program year, 2016 to 2025
General payments to Dr. Joh by kind, 2016 to 2025
- Food and beverage$1,01796%
- Education$384%
Companies that paid Dr. Joh 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. Jennifer Eunjoo Joh graduated from University of Miami, Lm Miller School of Medicine
Dr. Joh graduated from University of Miami, Lm Miller School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jennifer Eunjoo Joh'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Jennifer Eunjoo Joh
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. Jennifer Eunjoo Joh's NPI number?
Dr. Jennifer Eunjoo Joh's NPI number is 1487880852. It was assigned on May 29, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Eunjoo Joh?
Dr. Jennifer Eunjoo Joh is a general surgeon in Baltimore, Maryland. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Jennifer Eunjoo Joh practice?
Dr. Joh practices at 301 Saint Paul Place, Baltimore, MD 21202. Dr. Joh's primary practice is Mercy Medical Center in Baltimore, Maryland, part of Mercy Medical Center. Dmand AI also links Dr. Joh to 1 group practice or clinic.
What is Dr. Jennifer Eunjoo Joh's office phone number?
The practice phone on file for Dr. Joh is (410) 332-9237.
What is Dr. Jennifer Eunjoo Joh's medical license number?
Dr. Joh holds Maryland license D0073837, one of the licenses on file in 3 states.
Which states has Dr. Jennifer Eunjoo Joh been licensed in?
Dmand AI has state licenses on file for Dr. Joh in Maryland, Florida and New York.
Which hospitals is Dr. Jennifer Eunjoo Joh affiliated with?
Dr. Joh practices at Mercy Medical Center in Baltimore, Maryland.
What medical group is Dr. Jennifer Eunjoo Joh part of?
Dr. Joh is linked to Mercy Personal Physicians Downtown.
Does Dr. Jennifer Eunjoo Joh accept Medicare?
Yes. CMS data shows Dr. Joh billed Medicare for 490 services in 2024, and Dr. Joh accepts Medicare assignment.
What is Dr. Jennifer Eunjoo Joh's MIPS score?
Dr. Joh's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Jennifer Eunjoo Joh see?
CMS counts 262 Medicare patients who saw Dr. Joh in 2024, with an average age of 72.
What services does Dr. Jennifer Eunjoo Joh bill to Medicare?
In 2024, Dr. Joh's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and heart test or procedure (93702).
Where did Dr. Jennifer Eunjoo Joh go to medical school?
Dr. Joh graduated from University of Miami, Lm Miller School of Medicine in 2004.
What drugs does Dr. Jennifer Eunjoo Joh prescribe most?
In 2020 Medicare Part D data, Dr. Joh's most prescribed drugs by claims were Tamoxifen Citrate.
Has Dr. Jennifer Eunjoo Joh received payments from drug or device companies?
CMS Open Payments shows $1,055 in general payments to Dr. Joh from 14 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Jennifer Eunjoo Joh been practicing?
Dr. Joh graduated from medical school in 2004, 22 years ago.
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