Kathryn Yamamoto, M.D.
NPI 1154549251 · Emergency Medicine Physician · Lutherville, MD
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathryn Yamamoto, M.D. is a Emergency Medicine Physician provider in Lutherville, MD (NPI 1154549251).
Provider details
- NPI number
- 1154549251
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D292222 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,667 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 280 | $95 |
| X-Ray of Chest, 2 Views71046 | 179 | $32 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 143 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 137 | $133 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 131 | $8 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 117 | 116 |
| Doxycycline Hyclate | 78 | 77 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 33 | 33 |
| Cefuroxime Axetilbrand: Cefuroxime | 31 | 30 |
| Diphth,pertuss(acell),tet Vacbrand: Boostrix Tdap | 26 | 26 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 22 | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-23
- Last updated
- 2022-04-14
- Certified
- 2022-04-14
Frequently asked questions
- What is Kathryn Yamamoto's NPI number?
- Kathryn Yamamoto's National Provider Identifier (NPI) is 1154549251, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathryn Yamamoto's specialty?
- Kathryn Yamamoto is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kathryn Yamamoto located?
- Kathryn Yamamoto's practice location on file with NPPES is 10755 Falls Rd, Lutherville, MD 21093-4515.
- What is Kathryn Yamamoto's phone number?
- The practice phone number listed in the NPPES registry for Kathryn Yamamoto is (410) 583-2777.
- Does Kathryn Yamamoto accept Medicare?
- Kathryn Yamamoto is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathryn Yamamoto's NPI active?
- Yes — Kathryn Yamamoto's NPI (1154549251) is active in the NPPES registry as of the last update on 2022-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.