Dr. Michael L. Deftos, MD, PhD
- Medicare services, 2024
- 374
- Medicare patients, 2024
- 166
- Publications
- 8
- MIPS score, 2024
- 61
- Hospital affiliations
- 1
- Practice address
- 751 South Bascom Avenue, San Jose, CA 95128
- Practice phone
- Call (408) 885-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Deftos' 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. Michael L. Deftos is a pathologist in San Jose, California
Dr. Deftos practices at Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA.
Dr. Deftos' NPI, 1346557139, was assigned on September 1, 2010. Dr. Deftos graduated from University Of Washington School Of Medicine in 2003. Dr. Deftos holds California license A98387.
- NPI
- 1346557139NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375711955
- NPI enumeration date
- September 1, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 885-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael L. Deftos practices at Santa Clara Valley Medical Center in San Jose, California
Dr. Deftos' primary practice is Santa Clara Valley Medical Center, at 751 South Bascom Avenue, San Jose, CA 95128 in Santa Clara County. The practice phone is (408) 885-5000.
- Santa Clara Valley Medical Center751 South Bascom Avenue, San Jose, CA 95128 · Santa Clara CountyPhone(408) 885-5000
Source: Dmand AI Affiliation Data
Dr. Michael L. Deftos is affiliated with 2 sites of care and 1 medical group
Dr. Deftos' primary practice is Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA. The medical group on file is County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI also links Dr. Deftos to 1 more community health center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael L. Deftos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Deftos practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Clara Valley Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael L. Deftos is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Deftos' primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Deftos is board certified in hematopathology by the American Board of Pathology. Dr. Deftos is licensed in California.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
Pathologists near Dr. Deftos
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. Michael L. Deftos billed Medicare for 374 services in 2024
CMS data shows 374 Medicare services from Dr. Deftos across 9 procedure codes in 2024, for 166 Medicare patients. Medicare paid $12,891 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Deftos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 5182024: 37428%
Dr. Deftos compared with the California median for pathologists, 2024
- Dr. Deftos
- California median
- Medicare services
- 374vs 1,15368% below
- Medicare patients
- 166vs 44763% below
Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.
Dr. Deftos' 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Deftos and other pathologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael L. Deftos treated 166 Medicare patients in 2024, average age 70
CMS counts 166 Medicare patients who saw Dr. Deftos in 2024. The largest group is 65 to 74, with 88 patients. 75% of them have high blood pressure, and 59% have high cholesterol. 80% are also on Medicaid. Their average risk score is 2.02, 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. Deftos' median patient age at 63, with 54% women.
Dr. Deftos' Medicare patients by age, 2024
Dr. Deftos' Medicare patients by sex, 2024
- Women9457%
- Men7243%
Chronic conditions among Dr. Deftos' Medicare patients, 2024
- High blood pressure75%
- High cholesterol59%
- Diabetes42%
- Chronic kidney disease30%
- Cancer29%
- Arthritis27%
- Mood disorders27%
- Heart failure24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Deftos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael L. Deftos scored 61 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 61 out of 100 for Dr. Deftos for performance year 2024, reported as part of a group. Dr. Deftos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Deftos' MIPS scores, performance year 2024
- 61of 100Final score
- 59.4of 100Quality
- 0of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
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. Michael L. Deftos has 8 publications on record
Dmand AI links 8 papers to Dr. Deftos, published from 2012 to 2023. The most frequent topics are Proteins, Signal Transduction and In Situ Hybridization. Dr. Deftos' most frequent co-authors are Harminder Singh, Michael H. Zhang, MD and Michael Zhang.
Dr. Deftos' papers by year, 2012 to 2023
Topics Dr. Deftos writes about most
- Proteins
- Signal Transduction
- In Situ Hybridization
- Intracellular Signaling Peptides and Proteins
- Membrane Proteins
- Mesoderm
- Receptor, Notch1
- Receptors, Cell Surface
Dr. Deftos' most frequent co-authors
Recent publications by Dr. Deftos
See who Dr. Deftos researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Deftos works with, so you can find a warm path to the right pathologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael L. Deftos graduated from University Of Washington School Of Medicine
Dr. Deftos graduated from University Of Washington School Of Medicine in 2003.
- Medical school
- Board certified in hematopathology
- Board certified in pathology - anatomic
- Board certified in pathology - clinical
Source: Dmand AI Professional Profile Data
Dr. Michael L. Deftos accepts plans from 2 insurance carriers
Dr. Deftos is in network with 2 carriers, including Aetna and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Aetna
- CMS Medicare
Plan types Dr. Deftos accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael L. Deftos'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 | Dmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Michael L. Deftos
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. Michael L. Deftos' NPI number?
Dr. Michael L. Deftos' NPI number is 1346557139. It was assigned on September 1, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael L. Deftos?
Dr. Michael L. Deftos is a pathologist in San Jose, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Michael L. Deftos practice?
Dr. Deftos practices at 751 South Bascom Avenue, San Jose, CA 95128. Dr. Deftos' primary practice is Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA. Dmand AI also links Dr. Deftos to 1 community health center.
What is Dr. Michael L. Deftos' office phone number?
The practice phone on file for Dr. Deftos is (408) 885-5000.
What is Dr. Michael L. Deftos' medical license number?
Dr. Deftos holds California license A98387.
Which hospitals is Dr. Michael L. Deftos affiliated with?
Dr. Deftos practices at Santa Clara Valley Medical Center in San Jose, California.
What medical group is Dr. Michael L. Deftos part of?
Dr. Deftos is linked to County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic.
Does Dr. Michael L. Deftos accept Medicare?
Yes. CMS data shows Dr. Deftos billed Medicare for 374 services in 2024, and Dr. Deftos accepts Medicare assignment.
What is Dr. Michael L. Deftos' MIPS score?
Dr. Deftos' MIPS final score for performance year 2024 is 61 out of 100, reported as part of a group.
How many Medicare patients does Dr. Michael L. Deftos see?
CMS counts 166 Medicare patients who saw Dr. Deftos in 2024, with an average age of 70.
Show 7 more questionsShow fewer questions
Is Dr. Michael L. Deftos board certified?
Yes. Dr. Deftos is board certified in hematopathology by the American Board of Pathology.
What services does Dr. Michael L. Deftos bill to Medicare?
In 2024, Dr. Deftos' most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Where did Dr. Michael L. Deftos go to medical school?
Dr. Deftos graduated from University Of Washington School Of Medicine in 2003.
How long has Dr. Michael L. Deftos been practicing?
Dr. Deftos graduated from medical school in 2003, 23 years ago.
Does Dr. Michael L. Deftos do research?
Dmand AI links 8 publications to Dr. Deftos, published from 2012 to 2023.
Who does Dr. Michael L. Deftos publish with?
Dr. Deftos' most frequent co-authors are Harminder Singh (2 shared papers), Michael H. Zhang, MD (2 shared papers) and Michael Zhang (2 shared papers).
What insurance does Dr. Michael L. Deftos accept?
Dr. Deftos is in network with 2 carriers, including Aetna and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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