Dr. John T. Yamashita, MD
- Medicare services, 2024
- 1,600
- Medicare patients, 2024
- 417
- MIPS score, 2024
- 98
- Hospital affiliations
- 3
- Medical group
- 1
- Practice address
- 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345
- Practice phone
- Call (818) 898-4630
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sub-Acute Care Center
Skilled Nursing Facility - Hospital-Based · Mission Hills, California
Find Dr. Yamashita's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John T. Yamashita is a pathologist in Mission Hills, California
Dr. Yamashita practices at Sub-Acute Care Center in Mission Hills, California.
Dr. Yamashita's NPI, 1558355024, was assigned on September 9, 2005. Dr. Yamashita graduated from George Washington University School of Medicine and Health Sciences in 1991. Dr. Yamashita holds California license G75497.
- NPI
- 1558355024NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557342789
- NPI enumeration date
- September 9, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 898-4630
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John T. Yamashita practices at 2 locations in Mission Hills, California
Dr. Yamashita's primary practice is Sub-Acute Care Center, at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 in Los Angeles County. The practice phone is (818) 898-4630. Dr. Yamashita also practices at Providence Holy Cross Medical Center, 15031 W Rinaldi St, Mission Hills, CA 91345.
- Sub-Acute Care CenterPrimary11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 898-4630
- Providence Holy Cross Medical Center15031 W Rinaldi St, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 496-1735
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. John T. Yamashita is affiliated with 5 sites of care and 1 medical group
Dr. Yamashita's primary practice is Sub-Acute Care Center in Mission Hills, California. Dr. Yamashita is also affiliated with Providence Holy Cross Medical Center. The medical group on file is Pathology Associates of Southern California. Dmand AI also links Dr. Yamashita to 2 more hospitals and 1 other site, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John T. Yamashita's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yamashita practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sub-Acute Care Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John T. Yamashita is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Yamashita's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Yamashita is board certified in anatomic pathology & clinical pathology by the American Board of Pathology. Dr. Yamashita is licensed in California.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
Pathologists near Dr. Yamashita
Counts of pathologists 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. John T. Yamashita billed Medicare for 1,600 services in 2024
CMS data shows 1,600 Medicare services from Dr. Yamashita across 20 procedure codes in 2024, for 417 Medicare patients. Medicare paid $50,052 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Yamashita's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1,4122024: 1,60013%
Dr. Yamashita compared with the California median for pathologists, 2024
- Dr. Yamashita
- California median
- Medicare services
- 1,600vs 1,15339% above
- Medicare patients
- 417vs 4477% below
Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.
Dr. Yamashita'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John T. Yamashita treated 417 Medicare patients in 2024, average age 74
CMS counts 417 Medicare patients who saw Dr. Yamashita in 2024. The largest group is 65 to 74, with 164 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 61% are also on Medicaid. Their average risk score is 3.01, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Yamashita's median patient age at 43, with 65% women.
Dr. Yamashita's Medicare patients by age, 2024
Dr. Yamashita's Medicare patients by sex, 2024
- Women22454%
- Men19346%
Chronic conditions among Dr. Yamashita's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Diabetes55%
- Heart failure48%
- Chronic kidney disease47%
- Ischemic heart disease46%
- Mood disorders37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yamashita's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women65%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John T. Yamashita scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Yamashita for performance year 2024, reported as part of a group. Dr. Yamashita accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Yamashita's MIPS scores, performance year 2024
- 98of 100Final score
- 76.9of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John T. Yamashita graduated from George Washington University School of Medicine and Health Sciences
Dr. Yamashita graduated from George Washington University School of Medicine and Health Sciences in 1991.
- Medical school
- Board certified in anatomic pathology & clinical pathology
Source: Dmand AI Professional Profile Data
Dr. John T. Yamashita accepts plans from 3 insurance carriers
Dr. Yamashita is in network with 3 carriers, including CMS Medicare, Molina and RI State Medicaid. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- CMS Medicare
- Molina
- RI State Medicaid
Plan types Dr. Yamashita accepts, by number of carriers
- Medicare2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. John T. Yamashita'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 Affiliation DataDmand AI Practice 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) |
| 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. John T. Yamashita
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. John T. Yamashita's NPI number?
Dr. John T. Yamashita's NPI number is 1558355024. It was assigned on September 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John T. Yamashita?
Dr. John T. Yamashita is a pathologist in Mission Hills, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. John T. Yamashita practice?
Dr. Yamashita practices at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345. Dr. Yamashita also practices at 15031 W Rinaldi St, Mission Hills, CA 91345. Dr. Yamashita's primary practice is Sub-Acute Care Center in Mission Hills, California. Dmand AI also links Dr. Yamashita to 2 hospitals and 1 other site.
What is Dr. John T. Yamashita's office phone number?
The practice phone on file for Dr. Yamashita is (818) 898-4630.
What is Dr. John T. Yamashita's medical license number?
Dr. Yamashita holds California license G75497.
Which hospitals is Dr. John T. Yamashita affiliated with?
Dr. Yamashita is affiliated with Providence Holy Cross Medical Center. Dmand AI links Dr. Yamashita to 2 more hospitals.
What medical group is Dr. John T. Yamashita part of?
Dr. Yamashita is linked to Pathology Associates of Southern California.
Does Dr. John T. Yamashita accept Medicare?
Yes. CMS data shows Dr. Yamashita billed Medicare for 1,600 services in 2024, and Dr. Yamashita accepts Medicare assignment.
What is Dr. John T. Yamashita's MIPS score?
Dr. Yamashita's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Dr. John T. Yamashita see?
CMS counts 417 Medicare patients who saw Dr. Yamashita in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
Is Dr. John T. Yamashita board certified?
Yes. Dr. Yamashita is board certified in anatomic pathology & clinical pathology by the American Board of Pathology.
What services does Dr. John T. Yamashita bill to Medicare?
In 2024, Dr. Yamashita's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88313).
Where did Dr. John T. Yamashita go to medical school?
Dr. Yamashita graduated from George Washington University School of Medicine and Health Sciences in 1991.
How long has Dr. John T. Yamashita been practicing?
Dr. Yamashita graduated from medical school in 1991, 35 years ago.
What insurance does Dr. John T. Yamashita accept?
Dr. Yamashita is in network with 3 carriers, including CMS Medicare, Molina and RI State Medicaid. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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