Nathan Geonwoo Kim, MD
Transplant Hepatology Physician · Stanford, CA
Nathan Geonwoo Kim, MD is a transplant hepatology physician with a practice address in Stanford, California, and NPI 1144717323, issued on Apr 13, 2018. Check the license (California A173606, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan Geonwoo Kim
- Credential
- MD
- Primary taxonomy
- Transplant Hepatology Physician 207RT0003X
- License number
- A173606 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Apr 13, 2018
- Record last updated
- Oct 10, 2025
- Medicare enrollment
- Enrolled (PECOS I20250903002540); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest transplant hepatology physician records → All 42 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
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Verify Nathan Geonwoo Kim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A173606Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average transplant hepatology physician in 2024
121 Medicare Part D claims for 41 beneficiaries, against an average of 669 among the 251 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Carvedilol17 claims
- Xifaxan13 claims
- Omeprazole11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $95.80
1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 193 providers of this specialty with any payment received $10,299.21 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nathan Geonwoo Kim among 42 transplant hepatology physician records in California
Nathan Geonwoo Kim, MD is one of 42 transplant hepatology physician records with a practice address in California. 98% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 93% of them.
- NPI issued2018 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 98% of these records are
- In the CMS Doctors and Clinicians fileYes · 90% of these records are
- Graduated2018 · median 2005 among the 38 with a school on file
- Record last updated2025 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RT0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Transplant Hepatology Physician providers in California
There are 42 transplant hepatology physician records in California.
All 42 in California → Every provider in Stanford → Transplant Hepatology Physician nationwide →
The 8 transplant hepatology physician records with the nearest ZIP codes
- Renumathy Dhanasekaran, MD, PHDStanford, CA 943051609008143
- Tahereh Ghaziani, MDStanford, CA 943051871741769
- Sajid Jalil, MBBSStanford, CA 943051699989939
- Mindie Nguyen, MDStanford, CA 943051164558326
- Danielle Brandman, MD, MASSan Francisco, CA 941431518164540
- Jin GeSan Francisco, CA 941431275929077
- Bilal Hameed, M.D.San Francisco, CA 941431114037421
- Jessica RubinSan Francisco, CA 941431710306766
Common questions
What is Nathan Geonwoo Kim, MD's NPI number?
Nathan Geonwoo Kim, MD's National Provider Identifier (NPI) is 1144717323, issued on Apr 13, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Geonwoo Kim, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Nathan Geonwoo Kim, MD's license?
NPPES lists California license number A173606, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathan Geonwoo Kim, MD prescribe under Medicare Part D?
In 2024, Nathan Geonwoo Kim, MD had 121 Medicare Part D claims for 41 beneficiaries; the average among transplant hepatology physician prescribers was 669. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.