Dr. Ira H. Tilles, MD
- Medicare services, 2024
- 917
- Medicare patients, 2024
- 508
- Part D claims, 2024
- 434
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 2975 N Sycamore Dr, Simi Valley, CA 93065
- Practice phone
- Call (805) 955-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Ira H. Tilles is an emergency medicine physician in Simi Valley, California
Dr. Tilles practices at Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health.
Dr. Tilles' NPI, 1265509129, was assigned on November 29, 2006. Dr. Tilles graduated from George Washington University School of Medicine and Health Sciences in 1993. Dr. Tilles holds California license G81641.
- NPI
- 1265509129NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002913845
- NPI enumeration date
- November 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 955-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ira H. Tilles practices at Adventist Health Simi Valley in Simi Valley, California
Dr. Tilles' primary practice is Adventist Health Simi Valley, at 2975 N Sycamore Dr, Simi Valley, CA 93065 in Ventura County. The practice phone is (805) 955-6000.
- Adventist Health Simi Valley2975 N Sycamore Dr, Simi Valley, CA 93065 · Ventura CountyPhone(805) 955-6000
Source: Dmand AI Affiliation Data
Dr. Ira H. Tilles is affiliated with 2 sites of care and 4 medical groups
Dr. Tilles' primary practice is Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health. Dr. Tilles is also affiliated with Salinas Valley Health Medical Center. The medical group on file is Allied Emergency Physicians. Dmand AI also links Dr. Tilles to 3 more medical groups, 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. Ira H. Tilles' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tilles practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Simi Valley | Available with a free account |
| +1 more site and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Ira H. Tilles is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Tilles' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Tilles is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Tilles' licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Texas license
Emergency medicine physicians near Dr. Tilles
Counts of emergency medicine physicians 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. Ira H. Tilles billed Medicare for 917 services in 2024
CMS data shows 917 Medicare services from Dr. Tilles across 7 procedure codes in 2024, for 508 Medicare patients. Medicare paid $72,252 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Tilles' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5142024: 5456%
- Tests and treatments
- 2023: 3612024: 3723%
- Imaging
- 2023: 112024: 0100%
Dr. Tilles compared with the California median for emergency medicine physicians, 2024
- Dr. Tilles
- California median
- Medicare services
- 917vs 2653.5 times
- Medicare patients
- 508vs 2432.1 times
- Part D claims
- 306vs 624.9 times
Medians across 7,079 emergency medicine physicians 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 emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ira H. Tilles treated 508 Medicare patients in 2024, average age 75
CMS counts 508 Medicare patients who saw Dr. Tilles in 2024. The largest group is 75 to 84, with 175 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.01, 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. Tilles' median patient age at 51, with 57% women.
Dr. Tilles' Medicare patients by age, 2024
Dr. Tilles' Medicare patients by sex, 2024
- Women30861%
- Men20039%
Chronic conditions among Dr. Tilles' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Mood disorders44%
- Depression41%
- Ischemic heart disease41%
- Anxiety40%
- Heart failure40%
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 51
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ira H. Tilles wrote 434 Medicare Part D claims in 2024
In 2024, Dr. Tilles wrote 434 Medicare Part D claims for 239 patients. 94% of them were for generic drugs. CMS names the drug for 306 of them, across 13 drugs with 11 or more claims each, at $2,348 in total drug cost. In 2023, CMS named 248 claims across 12 drugs.
Dr. Tilles' Part D claims by kind of drug, 2024
- Generic407 claims94%
- Brand-name27 claims6%
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
- Opioids16%69 of 434 claims
- Antibiotics26%115 of 434 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: 2482024: 30623%
Drugs named by CMS: 13 in 2024, 12 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. Ira H. Tilles scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Tilles for performance year 2024, reported as part of a group. 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
- 85of 100Final score
- 73.4of 100Quality
- 40of 100Improvement Activities
- 73of 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. Ira H. Tilles received $858 in industry payments from 2016 to 2025
CMS Open Payments shows 10 general payments to Dr. Tilles from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Penumbra, Inc. paid the most, $368.
General payments to Dr. Tilles by program year, 2016 to 2025
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. Ira H. Tilles graduated from George Washington University School of Medicine and Health Sciences
Dr. Tilles graduated from George Washington University School of Medicine and Health Sciences in 1993.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Ira H. Tilles accepts plans from 1 insurance carrier
Dr. Tilles is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Ira H. 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 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) |
| 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) |
| 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. Ira H. 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. Ira H. Tilles' NPI number?
Dr. Ira H. Tilles' NPI number is 1265509129. It was assigned on November 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ira H. Tilles?
Dr. Ira H. Tilles is an emergency medicine physician in Simi Valley, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Ira H. Tilles practice?
Dr. Tilles practices at 2975 N Sycamore Dr, Simi Valley, CA 93065. Dr. Tilles' primary practice is Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health. Dmand AI also links Dr. Tilles to 3 medical groups.
What is Dr. Ira H. Tilles' office phone number?
The practice phone on file for Dr. Tilles is (805) 955-6000.
What is Dr. Ira H. Tilles' medical license number?
Dr. Tilles holds California license G81641, one of the licenses on file in 2 states.
Which states has Dr. Ira H. Tilles been licensed in?
Dmand AI has state licenses on file for Dr. Tilles in California (1995 to 2027) and Texas (2001).
Which hospitals is Dr. Ira H. Tilles affiliated with?
Dr. Tilles practices at Adventist Health Simi Valley in Simi Valley, California. Dr. Tilles is also affiliated with Salinas Valley Health Medical Center.
What medical group is Dr. Ira H. Tilles part of?
Dr. Tilles is linked to Allied Emergency Physicians. Dmand AI links Dr. Tilles to 3 more medical groups.
Does Dr. Ira H. Tilles accept Medicare?
Yes. CMS data shows Dr. Tilles billed Medicare for 917 services in 2024, and Dr. Tilles accepts Medicare assignment.
What is Dr. Ira H. Tilles' MIPS score?
Dr. Tilles' MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Ira H. Tilles see?
CMS counts 508 Medicare patients who saw Dr. Tilles in 2024, with an average age of 75.
Is Dr. Ira H. Tilles board certified?
Yes. Dr. Tilles is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Ira H. Tilles bill to Medicare?
In 2024, Dr. Tilles' most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
Where did Dr. Ira H. Tilles go to medical school?
Dr. Tilles graduated from George Washington University School of Medicine and Health Sciences in 1993.
What drugs does Dr. Ira H. Tilles prescribe most?
In 2024 Medicare Part D data, Dr. Tilles' most prescribed drugs by claims were Cephalexin, Ondansetron ODT and Hydrocodone-Acetaminophen.
Has Dr. Ira H. Tilles received payments from drug or device companies?
CMS Open Payments shows $858 in general payments to Dr. Tilles from 6 companies from 2016 to 2025. The largest total came from Penumbra, Inc.
How long has Dr. Ira H. Tilles been practicing?
Dr. Tilles graduated from medical school in 1993, 33 years ago.
What insurance does Dr. Ira H. Tilles accept?
Dr. Tilles is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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