Dr. Esther Kim Bahk, MD
- Medicare services, 2022
- 16
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 4,466
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 6111 Executive Blvd, Rockville, MD 20852
- Practice phone
- Call (571) 622-2100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente Springfield Medical Center
Rockville, Maryland
Find Dr. Bahk's professional email, personal email and mobile number
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Dr. Esther Kim Bahk is an internist in Rockville, Maryland
Dr. Bahk practices at Kaiser Permanente Springfield Medical Center in Rockville, Maryland.
Dr. Bahk's NPI, 1316104532, was assigned on May 16, 2008. Dr. Bahk graduated from Columbia University College of Physicians and Surgeons in 1999. Dr. Bahk holds Virginia license 0101244337.
- NPI
- 1316104532NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204996622
- NPI enumeration date
- May 16, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (571) 622-2100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Esther Kim Bahk practices at Kaiser Permanente Springfield Medical Center in Rockville, Maryland
Dr. Bahk's primary practice is Kaiser Permanente Springfield Medical Center, at 6111 Executive Blvd, Rockville, MD 20852 in Montgomery County. The practice phone is (571) 622-2100.
- Kaiser Permanente Springfield Medical Center6111 Executive Blvd, Rockville, MD 20852 · Montgomery CountyPhone(571) 622-2100
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Esther Kim Bahk is affiliated with 3 sites of care and 2 medical groups
Dr. Bahk's primary practice is Kaiser Permanente Springfield Medical Center in Rockville, Maryland. The medical group on file is Inova Urgent Care Center. Dmand AI also links Dr. Bahk 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. Esther Kim Bahk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bahk practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Springfield Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Esther Kim Bahk is one of 3,320 internists in Maryland
Internal medicine is Dr. Bahk's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bahk is licensed in Virginia.
Specialties and state licenses
- Internal medicine, VirginiaPrimary
Internists near Dr. Bahk
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. Esther Kim Bahk billed Medicare for 16 services in 2022
CMS data shows 16 Medicare services from Dr. Bahk across 1 procedure code in 2022, all of them office visits, for 12 Medicare patients. Medicare paid $1,042 for them. Every service was in an office.
Dr. Bahk's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 02022: 16
- Other services
- 2021: 3482022: 0100%
Dr. Bahk compared with the Maryland median for internists, 2022
- Dr. Bahk
- Maryland median
- Medicare services
- 16vs 65698% below
- Medicare patients
- 12vs 25195% below
- Part D claims
- 4,002vs 30913.0 times
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Bahk's most billed Medicare procedure codes, 2022
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. Bahk and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Esther Kim Bahk treated 12 Medicare patients in 2024, average age 75
CMS counts 12 Medicare patients who saw Dr. Bahk in 2024. The largest group is under 65, with 0 patients. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bahk's median patient age at 55, with 65% women.
Dr. Bahk's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bahk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Esther Kim Bahk wrote 4,466 Medicare Part D claims in 2024
In 2024, Dr. Bahk wrote 4,466 Medicare Part D claims for 408 patients. 90% of them were for generic drugs. CMS names the drug for 4,002 of them, across 74 drugs with 11 or more claims each, at $109,175 in total drug cost. In 2023, CMS named 3,638 claims across 67 drugs.
Dr. Bahk's Part D claims by kind of drug, 2024
- Generic4,017 claims90%
- Brand-name409 claims9%
- Other40 claims1%
Dr. Bahk'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. Bahk's Part D claims, 2024
- Opioids0%14 of 4,466 claims
- Antibiotics3%123 of 4,466 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: 3,6382024: 4,00210%
Drugs named by CMS: 74 in 2024, 67 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
How Dr. Esther Kim Bahk takes part in Medicare
Dr. Bahk 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. Esther Kim Bahk graduated from Columbia University College of Physicians and Surgeons
Dr. Bahk graduated from Columbia University College of Physicians and Surgeons in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Esther Kim Bahk'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) |
| 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. Esther Kim Bahk
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What is Dr. Esther Kim Bahk's NPI number?
Dr. Esther Kim Bahk's NPI number is 1316104532. It was assigned on May 16, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Esther Kim Bahk?
Dr. Esther Kim Bahk is an internist in Rockville, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Esther Kim Bahk practice?
Dr. Bahk practices at 6111 Executive Blvd, Rockville, MD 20852. Dr. Bahk's primary practice is Kaiser Permanente Springfield Medical Center in Rockville, Maryland. Dmand AI also links Dr. Bahk to 2 group practices and clinics and 1 medical group.
What is Dr. Esther Kim Bahk's office phone number?
The practice phone on file for Dr. Bahk is (571) 622-2100.
What is Dr. Esther Kim Bahk's medical license number?
Dr. Bahk holds Virginia license 0101244337.
What medical group is Dr. Esther Kim Bahk part of?
Dr. Bahk is linked to Inova Urgent Care Center. Dmand AI links Dr. Bahk to 1 more medical group.
Does Dr. Esther Kim Bahk accept Medicare?
Yes. CMS data shows Dr. Bahk billed Medicare for 16 services in 2022, and Dr. Bahk accepts Medicare assignment.
How many Medicare patients does Dr. Esther Kim Bahk see?
CMS counts 12 Medicare patients who saw Dr. Bahk in 2024, with an average age of 75.
What services does Dr. Esther Kim Bahk bill to Medicare?
In 2022, Dr. Bahk's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Esther Kim Bahk go to medical school?
Dr. Bahk graduated from Columbia University College of Physicians and Surgeons in 1999.
What drugs does Dr. Esther Kim Bahk prescribe most?
In 2024 Medicare Part D data, Dr. Bahk's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
How long has Dr. Esther Kim Bahk been practicing?
Dr. Bahk graduated from medical school in 1999, 27 years ago.
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