Kathryn Lynn Yamamoto, M.D.
Emergency Medicine Physician · Lutherville, MD
Kathryn Lynn Yamamoto, M.D. is an emergency medicine physician with a practice address in Lutherville, Maryland, and NPI 1154549251, issued on Apr 23, 2007. Check the license (Maryland D292222, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Kathryn Lynn Yamamoto
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- D292222 MD
Self-reported in NPPES; status is on the state search - Practice location
- 10755 Falls RD, Lutherville, MD 21093
- Phone
- (410) 583-2777
- Enumerated
- Apr 23, 2007
- Record last updated
- Apr 14, 2022
- Fax
- (410) 583-2782
- Medicaid IDs
- 369171300 MD
413046400 MD - Medicare enrollment
- Enrolled (PECOS I20040709000986); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,190 in Maryland → Look up another NPI →
Also registered at 10755 Falls RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paul Auwaerter, M.D.Infectious Disease Physician1083679849
- Peter Belitsos, M.D.Gastroenterology Physician1619978871
Verify Kathryn Lynn Yamamoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D292222Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average emergency medicine physician in 2024
587 Medicare Part D claims for 424 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone117 claims
- Doxycycline Hyclate78 claims
- Sulfamethoxazole-Trimethoprim33 claims
- Cefuroxime31 claims
- Boostrix Tdap26 claims
- Amoxicillin-Clavulanate Potass22 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 61.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Patient First Maryland Medical Group PLLCWaldorf, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Lynn Yamamoto among 1,190 emergency medicine physician records in Maryland
Kathryn Lynn Yamamoto, M.D. is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 49% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated1981 · median 2010 among the 571 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Maryland
There are 1,190 emergency medicine physician records in Maryland.
All 1,190 in Maryland → Every provider in Lutherville → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Douglas Carroll, MDLutherville, MD 210931659619682
- Steven Fountain, M.D.Lutherville Timonium, MD 210931114109782
- Elizabeth Kimmitt, MDTimonium, MD 210931952344889
- Rajagopala Tripuraneni, M.DHavre De Grace, MD 210781447368006
- Benjamin Cooperman, M.D.Elkridge, MD 210751902090707
- Kamilah Kelly, MDElkridge, MD 210751144254814
- Syed Ashruf, MDCrofton, MD 211141275660805
- Katia Alexander, MDOwings Mills, MD 211171619362472
Common questions
What is Kathryn Lynn Yamamoto, M.D.'s NPI number?
Kathryn Lynn Yamamoto, M.D.'s National Provider Identifier (NPI) is 1154549251, issued on Apr 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Lynn Yamamoto, M.D. located?
The NPPES record lists a practice address at 10755 Falls RD, Lutherville, MD, 21093. Phone: (410) 583-2777. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Lynn Yamamoto, M.D.'s license?
NPPES lists Maryland license number D292222, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathryn Lynn Yamamoto, M.D. prescribe under Medicare Part D?
In 2024, Kathryn Lynn Yamamoto, M.D. had 587 Medicare Part D claims for 424 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Kathryn Lynn Yamamoto, M.D.'s MIPS final score?
The 2023 MIPS final score is 61.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.