Dr. Irineo Dizon Tiangco, MD
- Medicare services, 2024
- 1,477
- Medicare patients, 2024
- 334
- Part D claims, 2024
- 10,778
- Hospital affiliations
- 2
- Industry payments
- $31,218
- Practice address
- 2340 E 8th St, National City, CA 91950-2869
- Practice phone
- Call (619) 479-0320
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Galleria Medical Clinic Inc
Physician office · National City, California
Find Dr. Tiangco'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. Irineo Dizon Tiangco is an internist in National City, California
Dr. Tiangco practices at Galleria Medical Clinic Inc in National City, California.
Dr. Tiangco's NPI, 1245322213, was assigned on September 28, 2006. Dr. Tiangco graduated from University of the Philippines College of Medicine in 1985. Dr. Tiangco's California license number on file is A52655.
- NPI
- 1245322213NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325025463
- NPI enumeration date
- September 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (619) 479-0320
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Irineo Dizon Tiangco practices at Galleria Medical Clinic Inc in National City, California
Dr. Tiangco's primary practice is Galleria Medical Clinic Inc, at 2340 E 8th St, National City, CA 91950-2869. The practice phone is (619) 479-0320.
- Galleria Medical Clinic Inc2340 E 8th St, National City, CA 91950-2869Phone(619) 479-0320
Source: Dmand AI Affiliation Data
Dr. Irineo Dizon Tiangco is affiliated with 4 sites of care
Dr. Tiangco's primary practice is Galleria Medical Clinic Inc in National City, California. Dr. Tiangco is also affiliated with Paradise Valley Hospital. Dmand AI also links Dr. Tiangco to 1 more hospital and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Irineo Dizon Tiangco's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tiangco practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Galleria Medical Clinic Inc | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Irineo Dizon Tiangco is one of 16,751 internists in California
Internal medicine is Dr. Tiangco's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tiangco is board certified in internal medicine by the National Board of Physicians and Surgeons. Dmand AI has Dr. Tiangco's licenses on file in 3 states: California, New Jersey and Pennsylvania.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- New Jersey license
- Pennsylvania license
Clinical focus
Dmand AI lists acute sinusitis, aneurysm, aortic atherosclerois, atrial fibrillation and flutter, cerebrovascular disease, chest wall injury, chronic diabetes and chronic hypertension among the conditions Dr. Tiangco treats.
Internists near Dr. Tiangco
Counts of internists 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. Irineo Dizon Tiangco billed Medicare for 1,477 services in 2024
CMS data shows 1,477 Medicare services from Dr. Tiangco across 10 procedure codes in 2024, for 334 Medicare patients. Medicare paid $136,828 for them. Every service was in an office.
Dr. Tiangco's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1712024: 1,01513%
- Other services
- 2023: 3242024: 37716%
- Tests and treatments
- 2023: 622024: 7318%
- Lab and pathology
- 2023: 132024: 128%
Dr. Tiangco compared with the California median for internists, 2024
- Dr. Tiangco
- California median
- Medicare services
- 1,477vs 3614.1 times
- Medicare patients
- 334vs 1512.2 times
- Part D claims
- 10,250vs 42124.3 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Tiangco'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. Tiangco and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Irineo Dizon Tiangco treated 334 Medicare patients in 2024, average age 77
CMS counts 334 Medicare patients who saw Dr. Tiangco in 2024. The largest group is 65 to 74, with 144 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tiangco's median patient age at 72, with 53% women.
Dr. Tiangco's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tiangco's Medicare patients by sex, 2024
- Women18856%
- Men14644%
Chronic conditions among Dr. Tiangco's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes69%
- Chronic kidney disease59%
- Heart failure27%
- Ischemic heart disease27%
- Arthritis26%
- COPD19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tiangco's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Irineo Dizon Tiangco wrote 10,778 Medicare Part D claims in 2024
In 2024, Dr. Tiangco wrote 10,778 Medicare Part D claims for 503 patients. 80% of them were for generic drugs. CMS names the drug for 10,250 of them, across 110 drugs with 11 or more claims each, at $1,488,236 in total drug cost. In 2023, CMS named 11,194 claims across 119 drugs.
Dr. Tiangco's Part D claims by kind of drug, 2024
- Generic8,646 claims80%
- Brand-name1,954 claims18%
- Other178 claims2%
Dr. Tiangco'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. Tiangco's Part D claims, 2024
- Antibiotics1%141 of 10,778 claims
- Antipsychotics, patients 65 and over1%100 of 10,778 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: 11,1942024: 10,2508%
Drugs named by CMS: 110 in 2024, 119 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. Irineo Dizon Tiangco offers telehealth to Medicare patients
Dr. Tiangco accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tiangco as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Irineo Dizon Tiangco received $31,218 in industry payments from 2016 to 2025
CMS Open Payments shows 790 general payments to Dr. Tiangco from 38 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 82% of the total. Amgen Inc. paid the most, $8,648.
General payments to Dr. Tiangco by program year, 2016 to 2025
General payments to Dr. Tiangco by kind, 2016 to 2025
- Food and beverage$25,45882%
- Consulting fees$4,55015%
- Travel and lodging$9083%
- Speaker and faculty fees$2501%
- Education$510%
Companies that paid Dr. Tiangco 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. Irineo Dizon Tiangco has 1 award and honors on record
Dmand AI lists 1 award for Dr. Tiangco, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Tiangco
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Irineo Dizon Tiangco graduated from University of the Philippines College of Medicine
Dr. Tiangco graduated from University of the Philippines College of Medicine in 1985.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Irineo Dizon Tiangco accepts plans from 12 insurance carriers
Dr. Tiangco is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- +4 more carriersWith a free account
Plan types Dr. Tiangco accepts, by number of carriers
- Medicare9
- PPO7
- HMO5
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Irineo Dizon Tiangco'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) |
| 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. Irineo Dizon Tiangco
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. Irineo Dizon Tiangco's NPI number?
Dr. Irineo Dizon Tiangco's NPI number is 1245322213. It was assigned on September 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Irineo Dizon Tiangco?
Dr. Irineo Dizon Tiangco is an internist in National City, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Irineo Dizon Tiangco practice?
Dr. Tiangco practices at 2340 E 8th St, National City, CA 91950-2869. Dr. Tiangco's primary practice is Galleria Medical Clinic Inc in National City, California. Dmand AI also links Dr. Tiangco to 1 hospital and 1 home health agency.
What is Dr. Irineo Dizon Tiangco's office phone number?
The practice phone on file for Dr. Tiangco is (619) 479-0320.
What is Dr. Irineo Dizon Tiangco's medical license number?
Dr. Tiangco's California license number on file is A52655, one of the licenses on file in 3 states.
Which states has Dr. Irineo Dizon Tiangco been licensed in?
Dmand AI has state licenses on file for Dr. Tiangco in California (1993 to 2025), New Jersey (1993 to 1999) and Pennsylvania (1990 to 1991).
Which hospitals is Dr. Irineo Dizon Tiangco affiliated with?
Dr. Tiangco is affiliated with Paradise Valley Hospital. Dmand AI links Dr. Tiangco to 1 more hospital.
Does Dr. Irineo Dizon Tiangco accept Medicare?
Yes. CMS data shows Dr. Tiangco billed Medicare for 1,477 services in 2024, and Dr. Tiangco accepts Medicare assignment.
Does Dr. Irineo Dizon Tiangco offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tiangco as offering telehealth services.
How many Medicare patients does Dr. Irineo Dizon Tiangco see?
CMS counts 334 Medicare patients who saw Dr. Tiangco in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
Is Dr. Irineo Dizon Tiangco board certified?
Yes. Dr. Tiangco is board certified in internal medicine by the National Board of Physicians and Surgeons.
What services does Dr. Irineo Dizon Tiangco bill to Medicare?
In 2024, Dr. Tiangco's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. Irineo Dizon Tiangco go to medical school?
Dr. Tiangco graduated from University of the Philippines College of Medicine in 1985.
What drugs does Dr. Irineo Dizon Tiangco prescribe most?
In 2024 Medicare Part D data, Dr. Tiangco's most prescribed drugs by claims were Rosuvastatin Calcium, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. Irineo Dizon Tiangco received payments from drug or device companies?
CMS Open Payments shows $31,218 in general payments to Dr. Tiangco from 38 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Irineo Dizon Tiangco been practicing?
Dr. Tiangco graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Irineo Dizon Tiangco accept?
Dr. Tiangco is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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