Dr. Ian B. Diaz, MD
- Medicare services, 2024
- 989
- Medicare patients, 2024
- 278
- Part D claims, 2024
- 3,622
- Hospital affiliations
- 2
- Industry payments
- $5,848
- Practice address
- 1505 Encinitas Blvd, Encinitas, CA 92024
- Practice phone
- Call (858) 249-5908
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UC San Diego Health Express Care - Encinitas
Encinitas, California
Find Dr. Diaz'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. Ian B. Diaz is a family medicine physician in Encinitas, California
Dr. Diaz practices at UC San Diego Health Express Care - Encinitas in Encinitas, California.
Dr. Diaz's NPI, 1023038411, was assigned on July 20, 2006. Dr. Diaz graduated from University of the Philippines College of Medicine in 1999. Dr. Diaz holds California license 4301076711.
- NPI
- 1023038411NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719950930
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (858) 249-5908
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ian B. Diaz practices at UC San Diego Health Express Care - Encinitas in Encinitas, California
Dr. Diaz's primary practice is UC San Diego Health Express Care - Encinitas, at 1505 Encinitas Blvd, Encinitas, CA 92024 in San Diego County. The practice phone is (858) 249-5908.
- UC San Diego Health Express Care - Encinitas1505 Encinitas Blvd, Encinitas, CA 92024 · San Diego CountyPhone(858) 249-5908
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ian B. Diaz is affiliated with 5 sites of care and 1 medical group
Dr. Diaz's primary practice is UC San Diego Health Express Care - Encinitas in Encinitas, California. Dr. Diaz is also affiliated with Scripps Memorial Hospital Encinitas. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Diaz to 1 more hospital and 2 home health agencies, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ian B. Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UC San Diego Health Express Care - Encinitas | 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. Ian B. Diaz is one of 15,680 family medicine physicians in California
Family medicine is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Diaz is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Diaz's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists acid reflux, adjustment disease, aneurysm, anxiety, arthritis, asthma, atrial fibrillation and flutter and benign or precancerous skin growths among the conditions Dr. Diaz treats.
Family medicine physicians near Dr. Diaz
Counts of family 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. Ian B. Diaz billed Medicare for 989 services in 2024
CMS data shows 989 Medicare services from Dr. Diaz across 10 procedure codes in 2024, for 278 Medicare patients. Medicare paid $43,867 for them. Every service was in an office.
Dr. Diaz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1862024: 507173%
- Office and hospital visits
- 2023: 4322024: 4125%
- Tests and treatments
- 2023: 882024: 7020%
- Lab and pathology
- 2023: 4092024: 0100%
Dr. Diaz compared with the California median for family medicine physicians, 2024
- Dr. Diaz
- California median
- Medicare services
- 989vs 2464.0 times
- Medicare patients
- 278vs 1182.4 times
- Part D claims
- 2,900vs 8333.5 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Diaz'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Diaz and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ian B. Diaz treated 278 Medicare patients in 2024, average age 75
CMS counts 278 Medicare patients who saw Dr. Diaz in 2024. The largest group is 65 to 74, with 138 patients. 66% of them have high cholesterol, and 62% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 61, with 47% women.
Dr. Diaz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Diaz's Medicare patients by sex, 2024
- Women13649%
- Men14251%
Chronic conditions among Dr. Diaz's Medicare patients, 2024
- High cholesterol66%
- High blood pressure62%
- Arthritis50%
- Ischemic heart disease26%
- Mood disorders25%
- Chronic kidney disease23%
- Depression23%
- Anxiety21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ian B. Diaz wrote 3,622 Medicare Part D claims in 2024
In 2024, Dr. Diaz wrote 3,622 Medicare Part D claims for 451 patients. 88% of them were for generic drugs. CMS names the drug for 2,900 of them, across 80 drugs with 11 or more claims each, at $273,978 in total drug cost. In 2023, CMS named 2,542 claims across 77 drugs.
Dr. Diaz's Part D claims by kind of drug, 2024
- Generic3,195 claims88%
- Brand-name and other427 claims12%
Dr. Diaz's 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. Diaz's Part D claims, 2024
- Opioids6%215 of 3,622 claims
- Antibiotics3%93 of 3,622 claims
- Antipsychotics, patients 65 and over0%12 of 3,622 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: 2,5422024: 2,90014%
Drugs named by CMS: 80 in 2024, 77 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. Ian B. Diaz offers telehealth to Medicare patients
Dr. Diaz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Diaz as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ian B. Diaz received $5,848 in industry payments from 2016 to 2024
CMS Open Payments shows 68 general payments to Dr. Diaz from 19 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 72% of the total. Sanofi and Genzyme US Companies paid the most, $5,219.
General payments to Dr. Diaz by program year, 2016 to 2024
General payments to Dr. Diaz by kind, 2016 to 2024
- Consulting fees$4,19872%
- Food and beverage$1,65028%
Companies that paid Dr. Diaz the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ian B. Diaz graduated from University of the Philippines College of Medicine
Dr. Diaz graduated from University of the Philippines College of Medicine in 1999.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Ian B. Diaz accepts plans from 15 insurance carriers
Dr. Diaz is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Humana
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. Diaz accepts, by number of carriers
- PPO10
- Medicare9
- HMO7
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Ian B. Diaz'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Doctors and Clinicians Utilization Data (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. Ian B. Diaz
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. Ian B. Diaz's NPI number?
Dr. Ian B. Diaz's NPI number is 1023038411. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ian B. Diaz?
Dr. Ian B. Diaz is a family medicine physician in Encinitas, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Ian B. Diaz practice?
Dr. Diaz practices at 1505 Encinitas Blvd, Encinitas, CA 92024. Dr. Diaz's primary practice is UC San Diego Health Express Care - Encinitas in Encinitas, California. Dmand AI also links Dr. Diaz to 1 hospital and 2 home health agencies.
What is Dr. Ian B. Diaz's office phone number?
The practice phone on file for Dr. Diaz is (858) 249-5908.
What is Dr. Ian B. Diaz's medical license number?
Dr. Diaz holds California license 4301076711, one of the licenses on file in 2 states.
Which states has Dr. Ian B. Diaz been licensed in?
Dmand AI has state licenses on file for Dr. Diaz in California (2013 to 2027) and Michigan (2000 to 2016).
Which hospitals is Dr. Ian B. Diaz affiliated with?
Dr. Diaz is affiliated with Scripps Memorial Hospital Encinitas. Dmand AI links Dr. Diaz to 1 more hospital.
What medical group is Dr. Ian B. Diaz part of?
Dr. Diaz is linked to UC San Diego Health.
Does Dr. Ian B. Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 989 services in 2024, and Dr. Diaz accepts Medicare assignment.
Does Dr. Ian B. Diaz offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Diaz as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Ian B. Diaz see?
CMS counts 278 Medicare patients who saw Dr. Diaz in 2024, with an average age of 75.
Is Dr. Ian B. Diaz board certified?
Yes. Dr. Diaz is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Ian B. Diaz bill to Medicare?
In 2024, Dr. Diaz's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Ian B. Diaz go to medical school?
Dr. Diaz graduated from University of the Philippines College of Medicine in 1999.
What drugs does Dr. Ian B. Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Losartan Potassium.
Has Dr. Ian B. Diaz received payments from drug or device companies?
CMS Open Payments shows $5,848 in general payments to Dr. Diaz from 19 companies from 2016 to 2024. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Ian B. Diaz been practicing?
Dr. Diaz graduated from medical school in 1999, 27 years ago.
What insurance does Dr. Ian B. Diaz accept?
Dr. Diaz is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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