Dr. Jeffrey Tanaka Islas, MD
- Medicare services, 2024
- 204
- Medicare patients, 2024
- 155
- Part D claims, 2024
- 90
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Practice address
- 3610 Long Beach Blvd, Long Beach, CA 90807
- Practice phone
- Call (562) 424-0421
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Associates in General Surgery
Long Beach, California
Find Dr. Islas' 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. Jeffrey Tanaka Islas is a general surgeon in Long Beach, California
Dr. Islas practices at Associates in General Surgery in Long Beach, California.
Dr. Islas' NPI, 1629140678, was assigned on November 14, 2006. Dr. Islas graduated from David Geffen School of Medicine at UCLA in 1987. Dr. Islas holds California license G69424.
- NPI
- 1629140678NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698953206
- NPI enumeration date
- November 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 424-0421
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey Tanaka Islas practices at Associates in General Surgery in Long Beach, California
Dr. Islas' primary practice is Associates in General Surgery, at 3610 Long Beach Blvd, Long Beach, CA 90807 in Los Angeles County. The practice phone is (562) 424-0421.
- Associates in General Surgery3610 Long Beach Blvd, Long Beach, CA 90807 · Los Angeles CountyPhone(562) 424-0421
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jeffrey Tanaka Islas is affiliated with 3 sites of care and 1 medical group
Dr. Islas' primary practice is Associates in General Surgery in Long Beach, California. Dr. Islas is also affiliated with Dignity Health - St. Mary Medical Center. The medical group on file is Desert Trauma Surgeons. Dmand AI also links Dr. Islas to 1 more physician office, 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. Jeffrey Tanaka Islas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Islas practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Associates in General Surgery | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jeffrey Tanaka Islas is one of 2,926 general surgeons in California
Surgery is Dr. Islas' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Islas is board certified in surgery by the American Board of Surgery. Dr. Islas is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists abdominal hernia repair surgery, appendectomy, gallbladder removal and groin hernia surgery among the conditions Dr. Islas treats.
General surgeons near Dr. Islas
Counts of general surgeons 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. Jeffrey Tanaka Islas billed Medicare for 204 services in 2024
CMS data shows 204 Medicare services from Dr. Islas across 5 procedure codes in 2024, for 155 Medicare patients. Medicare paid $20,751 for them.
Dr. Islas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 672024: 204204%
- Surgery
- 2023: 112024: 0100%
Where Dr. Islas' Medicare services took place, 2024
- In an office9346%
- In a facility11154%
Dr. Islas compared with the California median for general surgeons, 2024
- Dr. Islas
- California median
- Medicare services
- 204vs 16623% above
- Medicare patients
- 155vs 12128% above
- Part D claims
- 83vs 342.4 times
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Islas' 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. Islas and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeffrey Tanaka Islas treated 155 Medicare patients in 2024, average age 72
CMS counts 155 Medicare patients who saw Dr. Islas in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 2.18, 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. Islas' median patient age at 57, with 48% women.
Dr. Islas' Medicare patients by age, 2024
Dr. Islas' Medicare patients by sex, 2024
- Women6844%
- Men8756%
Chronic conditions among Dr. Islas' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Diabetes48%
- Ischemic heart disease42%
- Chronic kidney disease36%
- Mood disorders36%
- Depression33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Islas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeffrey Tanaka Islas wrote 90 Medicare Part D claims in 2024
In 2024, Dr. Islas wrote 90 Medicare Part D claims for 74 patients. 100% of them were for generic drugs. CMS names the drug for 83 of them, across 3 drugs with 11 or more claims each, at $622 in total drug cost. In 2023, CMS named 96 claims across 3 drugs.
Dr. Islas' 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. Islas' Part D claims, 2024
- Opioids78%70 of 90 claims
- Antibiotics16%14 of 90 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: 962024: 8314%
Drugs named by CMS: 3 in 2024, 3 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. Jeffrey Tanaka Islas scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Islas for performance year 2024, reported as part of a group. Dr. Islas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Islas' MIPS scores, performance year 2024
- 98of 100Final score
- 97.7of 100Quality
- 40of 100Improvement Activities
- 63of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jeffrey Tanaka Islas received $1,666 in industry payments from 2016 to 2025
CMS Open Payments shows 47 general payments to Dr. Islas from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Davol Inc. paid the most, $265.
General payments to Dr. Islas by program year, 2016 to 2025
Companies that paid Dr. Islas 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. Jeffrey Tanaka Islas graduated from David Geffen School of Medicine at UCLA
Dr. Islas graduated from David Geffen School of Medicine at UCLA in 1987.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Jeffrey Tanaka Islas accepts plans from 10 insurance carriers
Dr. Islas is in network with 10 carriers, including Aetna, Elevance and Humana. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Humana
- LA Care
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- +2 more carriersWith a free account
Plan types Dr. Islas accepts, by number of carriers
- Medicare8
- PPO7
- HMO5
- EPO2
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jeffrey Tanaka Islas'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)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. Jeffrey Tanaka Islas
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. Jeffrey Tanaka Islas' NPI number?
Dr. Jeffrey Tanaka Islas' NPI number is 1629140678. It was assigned on November 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey Tanaka Islas?
Dr. Jeffrey Tanaka Islas is a general surgeon in Long Beach, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Jeffrey Tanaka Islas practice?
Dr. Islas practices at 3610 Long Beach Blvd, Long Beach, CA 90807. Dr. Islas' primary practice is Associates in General Surgery in Long Beach, California. Dmand AI also links Dr. Islas to 1 physician office.
What is Dr. Jeffrey Tanaka Islas' office phone number?
The practice phone on file for Dr. Islas is (562) 424-0421.
What is Dr. Jeffrey Tanaka Islas' medical license number?
Dr. Islas holds California license G69424.
Which hospitals is Dr. Jeffrey Tanaka Islas affiliated with?
Dr. Islas is affiliated with Dignity Health - St. Mary Medical Center.
What medical group is Dr. Jeffrey Tanaka Islas part of?
Dr. Islas is linked to Desert Trauma Surgeons.
Does Dr. Jeffrey Tanaka Islas accept Medicare?
Yes. CMS data shows Dr. Islas billed Medicare for 204 services in 2024, and Dr. Islas accepts Medicare assignment.
What is Dr. Jeffrey Tanaka Islas' MIPS score?
Dr. Islas' MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jeffrey Tanaka Islas see?
CMS counts 155 Medicare patients who saw Dr. Islas in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
Is Dr. Jeffrey Tanaka Islas board certified?
Yes. Dr. Islas is board certified in surgery by the American Board of Surgery.
What services does Dr. Jeffrey Tanaka Islas bill to Medicare?
In 2024, Dr. Islas' most billed Medicare services were hospital inpatient care (99232), office visit, new patient (99204) and office visit, established patient (99214).
Where did Dr. Jeffrey Tanaka Islas go to medical school?
Dr. Islas graduated from David Geffen School of Medicine at UCLA in 1987.
What drugs does Dr. Jeffrey Tanaka Islas prescribe most?
In 2024 Medicare Part D data, Dr. Islas' most prescribed drugs by claims were Acetaminophen-Codeine, Hydrocodone-Acetaminophen and Cephalexin.
Has Dr. Jeffrey Tanaka Islas received payments from drug or device companies?
CMS Open Payments shows $1,666 in general payments to Dr. Islas from 18 companies from 2016 to 2025. The largest total came from Davol Inc.
How long has Dr. Jeffrey Tanaka Islas been practicing?
Dr. Islas graduated from medical school in 1987, 39 years ago.
What insurance does Dr. Jeffrey Tanaka Islas accept?
Dr. Islas is in network with 10 carriers, including Aetna, Elevance and Humana. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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