Dr. Steven M. Tilles, MD
- Medicare services, 2024
- 2,021
- Medicare patients, 2024
- 508
- Part D claims, 2024
- 4,743
- MIPS score, 2024
- 72
- Hospital affiliations
- 3
- Practice address
- 2505 Samaritan Dr, San Jose, CA 95124-4006
- Practice phone
- Call (408) 356-8133
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Steven M. Tilles, MD
Physician office · San Jose, California
Find Dr. Tilles' 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. Steven M. Tilles is a nephrologist in San Jose, California
Dr. Tilles practices at Steven M. Tilles, MD in San Jose, California.
Dr. Tilles' NPI, 1841292745, was assigned on August 11, 2005. Dr. Tilles graduated from David Geffen School of Medicine at UCLA in 1978. Dr. Tilles holds California license G40389.
- NPI
- 1841292745NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800971730
- NPI enumeration date
- August 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 356-8133
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven M. Tilles practices at Steven M. Tilles, MD in San Jose, California
Dr. Tilles' primary practice is Steven M. Tilles, MD, at 2505 Samaritan Dr, San Jose, CA 95124-4006. The practice phone is (408) 356-8133.
- Steven M. Tilles, MD2505 Samaritan Dr, San Jose, CA 95124-4006Phone(408) 356-8133
Source: Dmand AI Affiliation Data
Dr. Steven M. Tilles is affiliated with 8 sites of care
Dr. Tilles' primary practice is Steven M. Tilles, MD in San Jose, California. Dr. Tilles is also affiliated with Good Samaritan Hospital. Dmand AI also links Dr. Tilles to 2 more hospitals, 2 dialysis centers and 2 home health agencies, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Steven M. Tilles' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tilles practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Steven M. Tilles, MD | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Steven M. Tilles is one of 1,401 nephrologists in California
Nephrology is Dr. Tilles' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Tilles is board certified in internal medicine by the American Board of Internal Medicine. Dr. Tilles is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists acute kidney failure, acute respiratory failure, acute sinusitis, aneurysm, arthritis, asthma, atrial fibrillation and flutter and chronic diabetes among the conditions Dr. Tilles treats.
Nephrologists near Dr. Tilles
Counts of nephrologists 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. Steven M. Tilles billed Medicare for 2,021 services in 2024
CMS data shows 2,021 Medicare services from Dr. Tilles across 9 procedure codes in 2024, for 508 Medicare patients. Medicare paid $293,326 for them.
Dr. Tilles' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3182024: 1,3071%
- Tests and treatments
- 2023: 7282024: 7142%
Where Dr. Tilles' Medicare services took place, 2024
- In an office1,28864%
- In a facility73336%
Dr. Tilles compared with the California median for nephrologists, 2024
- Dr. Tilles
- California median
- Medicare services
- 2,021vs 1,08486% above
- Medicare patients
- 508vs 30765% above
- Part D claims
- 3,934vs 9554.1 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Tilles' 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. Tilles and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven M. Tilles treated 508 Medicare patients in 2024, average age 77
CMS counts 508 Medicare patients who saw Dr. Tilles in 2024. The largest group is 75 to 84, with 204 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 13% are also on Medicaid. Their average risk score is 2.69, 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. Tilles' median patient age at 75, with 42% women.
Dr. Tilles' Medicare patients by age, 2024
Dr. Tilles' Medicare patients by sex, 2024
- Women21442%
- Men29458%
Chronic conditions among Dr. Tilles' Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Arthritis42%
- Ischemic heart disease41%
- Heart failure32%
- Atrial fibrillation31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tilles' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven M. Tilles wrote 4,743 Medicare Part D claims in 2024
In 2024, Dr. Tilles wrote 4,743 Medicare Part D claims for 400 patients. 84% of them were for generic drugs. CMS names the drug for 3,934 of them, across 89 drugs with 11 or more claims each, at $667,558 in total drug cost. In 2023, CMS named 4,036 claims across 94 drugs.
Dr. Tilles' Part D claims by kind of drug, 2024
- Generic3,978 claims84%
- Brand-name732 claims15%
- Other33 claims1%
Dr. Tilles' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tilles' Part D claims, 2024
- Opioids2%84 of 4,743 claims
- Antibiotics3%144 of 4,743 claims
- Antipsychotics, patients 65 and over0%15 of 4,743 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,0362024: 3,9343%
Drugs named by CMS: 89 in 2024, 94 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Steven M. Tilles scored 72 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 72 out of 100 for Dr. Tilles for performance year 2024, reported individually. Dr. Tilles accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Tilles' MIPS scores, performance year 2024
- 72of 100Final score
- 37.4of 100Quality
- 40of 100Improvement Activities
- 75of 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. Steven M. Tilles received $2,464 in industry payments from 2016 to 2025
CMS Open Payments shows 77 general payments to Dr. Tilles from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Amgen Inc. paid the most, $510.
General payments to Dr. Tilles by program year, 2016 to 2025
General payments to Dr. Tilles by kind, 2016 to 2025
- Food and beverage$2,38497%
- Education$813%
Companies that paid Dr. Tilles the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steven M. Tilles has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Tilles, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Tilles
- 2014
- Regional Top Doctor
- 2013
- CMS Stage 1 EHR
- Undated
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Steven M. Tilles graduated from David Geffen School of Medicine at UCLA
Dr. Tilles graduated from David Geffen School of Medicine at UCLA in 1978.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Steven M. Tilles accepts plans from 7 insurance carriers
Dr. Tilles is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Molina
Plan types Dr. Tilles accepts, by number of carriers
- Medicare7
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Steven M. Tilles'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 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Steven M. Tilles
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. Steven M. Tilles' NPI number?
Dr. Steven M. Tilles' NPI number is 1841292745. It was assigned on August 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven M. Tilles?
Dr. Steven M. Tilles is a nephrologist in San Jose, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Steven M. Tilles practice?
Dr. Tilles practices at 2505 Samaritan Dr, San Jose, CA 95124-4006. Dr. Tilles' primary practice is Steven M. Tilles, MD in San Jose, California. Dmand AI also links Dr. Tilles to 2 hospitals, 2 dialysis centers and 2 home health agencies.
What is Dr. Steven M. Tilles' office phone number?
The practice phone on file for Dr. Tilles is (408) 356-8133.
What is Dr. Steven M. Tilles' medical license number?
Dr. Tilles holds California license G40389.
Which hospitals is Dr. Steven M. Tilles affiliated with?
Dr. Tilles is affiliated with Good Samaritan Hospital. Dmand AI links Dr. Tilles to 2 more hospitals.
Does Dr. Steven M. Tilles accept Medicare?
Yes. CMS data shows Dr. Tilles billed Medicare for 2,021 services in 2024, and Dr. Tilles accepts Medicare assignment.
What is Dr. Steven M. Tilles' MIPS score?
Dr. Tilles' MIPS final score for performance year 2024 is 72 out of 100, reported individually.
How many Medicare patients does Dr. Steven M. Tilles see?
CMS counts 508 Medicare patients who saw Dr. Tilles in 2024, with an average age of 77.
Is Dr. Steven M. Tilles board certified?
Yes. Dr. Tilles is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Steven M. Tilles bill to Medicare?
In 2024, Dr. Tilles' most billed Medicare services were office visit, established patient (99214), dialysis (90961) and hospital inpatient care (99233).
Where did Dr. Steven M. Tilles go to medical school?
Dr. Tilles graduated from David Geffen School of Medicine at UCLA in 1978.
What drugs does Dr. Steven M. Tilles prescribe most?
In 2024 Medicare Part D data, Dr. Tilles' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Steven M. Tilles received payments from drug or device companies?
CMS Open Payments shows $2,464 in general payments to Dr. Tilles from 16 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Steven M. Tilles been practicing?
Dr. Tilles graduated from medical school in 1978, 48 years ago.
What insurance does Dr. Steven M. Tilles accept?
Dr. Tilles is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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