Dr. Jaime Alonso Diaz, MD
- Medicare services, 2024
- 1,089
- Medicare patients, 2024
- 641
- Part D claims, 2024
- 1,352
- MIPS score, 2024
- 79
- Hospital affiliations
- 2
- Practice address
- 2205 W Beverly Blvd, Montebello, CA 90640
- Practice phone
- Call (323) 728-0321
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
PIH Health Physicians
Montebello, 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. Jaime Alonso Diaz is an emergency medicine physician in Montebello, California
Dr. Diaz practices at PIH Health Physicians in Montebello, California.
Dr. Diaz's NPI, 1790727949, was assigned on June 12, 2006. Dr. Diaz graduated from UC Davis School of Medicine in 2002. Dr. Diaz holds California license A88200.
- NPI
- 1790727949NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527082759
- NPI enumeration date
- June 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (323) 728-0321
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jaime Alonso Diaz practices at PIH Health Physicians in Montebello, California
Dr. Diaz's primary practice is PIH Health Physicians, at 2205 W Beverly Blvd, Montebello, CA 90640 in Los Angeles County. The practice phone is (323) 728-0321.
- PIH Health Physicians2205 W Beverly Blvd, Montebello, CA 90640 · Los Angeles CountyPhone(323) 728-0321
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jaime Alonso Diaz is affiliated with 4 sites of care and 3 medical groups
Dr. Diaz's primary practice is PIH Health Physicians in Montebello, California. Dr. Diaz is also affiliated with CHRISTUS Santa Rosa Hospital - San Marcos. The medical group on file is PIH Health Physicians. Dmand AI also links Dr. Diaz to 1 more hospital, 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jaime Alonso Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| PIH Health Physicians | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jaime Alonso Diaz is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Diaz is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Diaz
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. Jaime Alonso Diaz billed Medicare for 1,089 services in 2024
CMS data shows 1,089 Medicare services from Dr. Diaz across 21 procedure codes in 2024, for 641 Medicare patients. Medicare paid $40,497 for them. Every service was in an office.
Dr. Diaz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3122024: 38022%
- Imaging
- 2023: 2582024: 31924%
- Lab and pathology
- 2023: 1272024: 22779%
- Drugs given in the office
- 2023: 392024: 98151%
- Tests and treatments
- 2023: 422024: 6555%
Dr. Diaz compared with the California median for emergency medicine physicians, 2024
- Dr. Diaz
- California median
- Medicare services
- 1,089vs 2654.1 times
- Medicare patients
- 641vs 2432.6 times
- Part D claims
- 1,086vs 6217.5 times
Medians across 7,079 emergency 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.
Need commercial claims for Dr. Diaz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Diaz 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. Jaime Alonso Diaz treated 641 Medicare patients in 2024, average age 74
CMS counts 641 Medicare patients who saw Dr. Diaz in 2024. The largest group is 65 to 74, with 304 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% 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 34, with 60% women.
Dr. Diaz's Medicare patients by age, 2024
Dr. Diaz's Medicare patients by sex, 2024
- Women44269%
- Men19931%
Chronic conditions among Dr. Diaz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes39%
- Chronic kidney disease27%
- Osteoporosis24%
- Ischemic heart disease21%
- Mood disorders21%
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 34
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jaime Alonso Diaz wrote 1,352 Medicare Part D claims in 2024
In 2024, Dr. Diaz wrote 1,352 Medicare Part D claims for 848 patients. 93% of them were for generic drugs. CMS names the drug for 1,086 of them, across 30 drugs with 11 or more claims each, at $6,098 in total drug cost. In 2023, CMS named 989 claims across 30 drugs.
Dr. Diaz's Part D claims by kind of drug, 2024
- Generic1,258 claims93%
- Brand-name and other94 claims7%
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
- Opioids1%13 of 1,352 claims
- Antibiotics39%534 of 1,352 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: 9892024: 1,08610%
Drugs named by CMS: 30 in 2024, 30 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. Jaime Alonso Diaz scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Diaz for performance year 2024, reported as part of a group. Dr. Diaz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Diaz's MIPS scores, performance year 2024
- 79of 100Final score
- 58.7of 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jaime Alonso Diaz received $158 in industry payments from 2016 to 2019
CMS Open Payments shows 4 general payments to Dr. Diaz from 4 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 84% of the total. Boston Scientific Corporation paid the most, $104.
General payments to Dr. Diaz by program year, 2016 to 2019
General payments to Dr. Diaz by kind, 2016 to 2019
- Food and beverage$13384%
- Speaker and faculty fees$2516%
Companies that paid Dr. Diaz the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jaime Alonso Diaz graduated from UC Davis School of Medicine
Dr. Diaz graduated from UC Davis School of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Jaime Alonso Diaz accepts plans from 7 insurance carriers
Dr. Diaz is in network with 7 carriers, including United Healthcare, Molina and Aspirus Health Plan. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Molina
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- HCSC
Plan types Dr. Diaz accepts, by number of carriers
- Medicare3
- PPO3
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jaime Alonso 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 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. Jaime Alonso 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. Jaime Alonso Diaz's NPI number?
Dr. Jaime Alonso Diaz's NPI number is 1790727949. It was assigned on June 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jaime Alonso Diaz?
Dr. Jaime Alonso Diaz is an emergency medicine physician in Montebello, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jaime Alonso Diaz practice?
Dr. Diaz practices at 2205 W Beverly Blvd, Montebello, CA 90640. Dr. Diaz's primary practice is PIH Health Physicians in Montebello, California. Dmand AI also links Dr. Diaz to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Dr. Jaime Alonso Diaz's office phone number?
The practice phone on file for Dr. Diaz is (323) 728-0321.
What is Dr. Jaime Alonso Diaz's medical license number?
Dr. Diaz holds California license A88200.
Which hospitals is Dr. Jaime Alonso Diaz affiliated with?
Dr. Diaz is affiliated with CHRISTUS Santa Rosa Hospital - San Marcos. Dmand AI links Dr. Diaz to 1 more hospital.
What medical group is Dr. Jaime Alonso Diaz part of?
Dr. Diaz is linked to PIH Health Physicians. Dmand AI links Dr. Diaz to 2 more medical groups.
Does Dr. Jaime Alonso Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 1,089 services in 2024, and Dr. Diaz accepts Medicare assignment.
What is Dr. Jaime Alonso Diaz's MIPS score?
Dr. Diaz's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jaime Alonso Diaz see?
CMS counts 641 Medicare patients who saw Dr. Diaz in 2024, with an average age of 74.
Show 6 more questionsShow fewer questions
What services does Dr. Jaime Alonso Diaz bill to Medicare?
In 2024, Dr. Diaz's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and radiation oncology (77080).
Where did Dr. Jaime Alonso Diaz go to medical school?
Dr. Diaz graduated from UC Davis School of Medicine in 2002.
What drugs does Dr. Jaime Alonso Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Azithromycin, Naproxen and Cephalexin.
Has Dr. Jaime Alonso Diaz received payments from drug or device companies?
CMS Open Payments shows $158 in general payments to Dr. Diaz from 4 companies from 2016 to 2019. The largest total came from Boston Scientific Corporation.
How long has Dr. Jaime Alonso Diaz been practicing?
Dr. Diaz graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Jaime Alonso Diaz accept?
Dr. Diaz is in network with 7 carriers, including United Healthcare, Molina and Aspirus Health Plan. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
Selling to emergency medicine practices?
See emergency medicine physicians in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card