Dr. Dianne Elizabeth Quintana, MD
- Medicare services, 2024
- 159
- Medicare patients, 2024
- 50
- Part D claims, 2024
- 1,184
- MIPS score, 2024
- 86
- Industry payments
- $510
- Practice address
- 795 E 2nd St Suite 2 Suite 2, Pomona, CA 91766-2007
- Practice phone
- Call (909) 469-8673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Westernu Health
Multi-specialty group site · Pomona, California
Find Dr. Quintana's professional email, personal email and mobile number
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Dr. Dianne Elizabeth Quintana is an internist in Pomona, California
Dr. Quintana practices at Westernu Health in Pomona, California.
Dr. Quintana's NPI, 1386083780, was assigned on June 18, 2013. Dr. Quintana holds California license A132214.
- NPI
- 1386083780NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608135488
- NPI enumeration date
- June 18, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 469-8673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dianne Elizabeth Quintana practices at Westernu Health in Pomona, California
Dr. Quintana's primary practice is Westernu Health, at 795 E 2nd St Suite 2 Suite 2, Pomona, CA 91766-2007. The practice phone is (909) 469-8673.
- Westernu Health795 E 2nd St Suite 2 Suite 2, Pomona, CA 91766-2007Phone(909) 469-8673
Source: Dmand AI Affiliation Data
Dr. Dianne Elizabeth Quintana is affiliated with 1 site of care and 1 medical group
Dr. Quintana's primary practice is Westernu Health in Pomona, California. Dmand AI also links Dr. Quintana to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Dianne Elizabeth Quintana's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Quintana practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Westernu Health | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dianne Elizabeth Quintana is one of 16,751 internists in California
Internal medicine is Dr. Quintana's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Quintana is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Quintana
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. Dianne Elizabeth Quintana billed Medicare for 159 services in 2024
CMS data shows 159 Medicare services from Dr. Quintana across 5 procedure codes in 2024, for 50 Medicare patients. Medicare paid $13,048 for them. Every service was in an office.
Dr. Quintana's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 842024: 9412%
- Other services
- 2023: 02024: 65
Dr. Quintana compared with the California median for internists, 2024
- Dr. Quintana
- California median
- Medicare services
- 159vs 36156% below
- Medicare patients
- 50vs 15167% below
- Part D claims
- 789vs 42187% above
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Quintana'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dianne Elizabeth Quintana treated 50 Medicare patients in 2024, average age 68
CMS counts 50 Medicare patients who saw Dr. Quintana in 2024. The largest group is 65 to 74, with 28 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 78% are also on Medicaid. Their average risk score is 1.62, 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. Quintana's median patient age at 55, with 63% women.
Dr. Quintana's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Quintana's Medicare patients by sex, 2024
- Women3774%
- Men1326%
Chronic conditions among Dr. Quintana's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes56%
- Arthritis48%
- Mood disorders32%
- Depression26%
- Anxiety24%
- Asthma24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Quintana's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dianne Elizabeth Quintana wrote 1,184 Medicare Part D claims in 2024
In 2024, Dr. Quintana wrote 1,184 Medicare Part D claims for 189 patients. 89% of them were for generic drugs. CMS names the drug for 789 of them, across 28 drugs with 11 or more claims each, at $35,839 in total drug cost. In 2023, CMS named 718 claims across 27 drugs.
Dr. Quintana's Part D claims by kind of drug, 2024
- Generic1,050 claims89%
- Brand-name111 claims9%
- Other23 claims2%
Dr. Quintana'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. Quintana's Part D claims, 2024
- Opioids2%27 of 1,184 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: 7182024: 78910%
Drugs named by CMS: 28 in 2024, 27 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. Dianne Elizabeth Quintana scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Quintana for performance year 2024, reported as part of a group. Dr. Quintana accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Quintana's MIPS scores, performance year 2024
- 86of 100Final score
- 68.8of 100Quality
- 40of 100Improvement Activities
- 79of 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. Dianne Elizabeth Quintana received $510 in industry payments from 2019 to 2025
CMS Open Payments shows 22 general payments to Dr. Quintana from 12 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $180.
General payments to Dr. Quintana by program year, 2019 to 2025
Companies that paid Dr. Quintana the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Dianne Elizabeth Quintana'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Dianne Elizabeth Quintana
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. Dianne Elizabeth Quintana's NPI number?
Dr. Dianne Elizabeth Quintana's NPI number is 1386083780. It was assigned on June 18, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Dianne Elizabeth Quintana?
Dr. Dianne Elizabeth Quintana is an internist in Pomona, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Dianne Elizabeth Quintana practice?
Dr. Quintana practices at 795 E 2nd St Suite 2 Suite 2, Pomona, CA 91766-2007. Dr. Quintana's primary practice is Westernu Health in Pomona, California. Dmand AI also links Dr. Quintana to 1 medical group.
What is Dr. Dianne Elizabeth Quintana's office phone number?
The practice phone on file for Dr. Quintana is (909) 469-8673.
What is Dr. Dianne Elizabeth Quintana's medical license number?
Dr. Quintana holds California license A132214.
Does Dr. Dianne Elizabeth Quintana accept Medicare?
Yes. CMS data shows Dr. Quintana billed Medicare for 159 services in 2024, and Dr. Quintana accepts Medicare assignment.
What is Dr. Dianne Elizabeth Quintana's MIPS score?
Dr. Quintana's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
How many Medicare patients does Dr. Dianne Elizabeth Quintana see?
CMS counts 50 Medicare patients who saw Dr. Quintana in 2024, with an average age of 68.
What services does Dr. Dianne Elizabeth Quintana bill to Medicare?
In 2024, Dr. Quintana's most billed Medicare services were office visit, established patient (99214), medicare service (G0444) and office visit, established patient (99215).
What drugs does Dr. Dianne Elizabeth Quintana prescribe most?
In 2024 Medicare Part D data, Dr. Quintana's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Levothyroxine Sodium.
Has Dr. Dianne Elizabeth Quintana received payments from drug or device companies?
CMS Open Payments shows $510 in general payments to Dr. Quintana from 12 companies from 2019 to 2025. The largest total came from Amgen Inc.
How long has Dr. Dianne Elizabeth Quintana been practicing?
Dr. Quintana graduated from medical school in 2013, 13 years ago.
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