Dr. Nestor Dellosa Riel, MD
- Part D claims, 2024
- 1,720
- Industry payments
- $50
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 7373 West Ln, Stockton, CA 95210
- Practice phone
- Call (209) 476-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Stockton, California
Find Dr. Riel'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. Nestor Dellosa Riel is a psychiatrist in Stockton, California
Dr. Riel practices at Permanente Medical Group Inc in Stockton, California.
Dr. Riel's NPI, 1457430597, was assigned on November 2, 2006. Dr. Riel graduated from University of the Philippines College of Medicine in 1995. Dr. Riel holds California license A70170.
- NPI
- 1457430597NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921050402
- NPI enumeration date
- November 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 476-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nestor Dellosa Riel practices at Permanente Medical Group Inc in Stockton, California
Dr. Riel's primary practice is Permanente Medical Group Inc, at 7373 West Ln, Stockton, CA 95210 in San Joaquin County. The practice phone is (209) 476-2000.
- Permanente Medical Group Inc7373 West Ln, Stockton, CA 95210 · San Joaquin CountyPhone(209) 476-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nestor Dellosa Riel is affiliated with 2 sites of care and 1 medical group
Dr. Riel's primary practice is Permanente Medical Group Inc in Stockton, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Riel to 1 more group practice or clinic, 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. Nestor Dellosa Riel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riel practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nestor Dellosa Riel is one of 6,803 psychiatrists in California
Psychiatry is Dr. Riel's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Riel is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Riel's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists adjustment disease, anxiety and schizophrenia among the conditions Dr. Riel treats.
Psychiatrists near Dr. Riel
Counts of psychiatrists 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. Nestor Dellosa Riel's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Riel's median patient age at 41, with 53% women.
Dr. Riel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Nestor Dellosa Riel wrote 1,720 Medicare Part D claims in 2024
In 2024, Dr. Riel wrote 1,720 Medicare Part D claims for 224 patients. 97% of them were for generic drugs. CMS names the drug for 1,548 of them, across 34 drugs with 11 or more claims each, at $71,741 in total drug cost. In 2023, CMS named 1,569 claims across 37 drugs.
Dr. Riel's Part D claims by kind of drug, 2024
- Generic1,669 claims97%
- Brand-name51 claims3%
Dr. Riel'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. Riel's Part D claims, 2024
- Antipsychotics, patients 65 and over8%146 of 1,720 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: 1,5692024: 1,5481%
Drugs named by CMS: 34 in 2024, 37 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
How Dr. Nestor Dellosa Riel takes part in Medicare
Dr. Riel accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nestor Dellosa Riel received $50 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Riel from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $50.
Companies that paid Dr. Riel the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nestor Dellosa Riel graduated from University of the Philippines College of Medicine
Dr. Riel graduated from University of the Philippines College of Medicine in 1995.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Nestor Dellosa Riel accepts plans from 2 insurance carriers
Dr. Riel is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Riel accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nestor Dellosa Riel'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Nestor Dellosa Riel
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. Nestor Dellosa Riel's NPI number?
Dr. Nestor Dellosa Riel's NPI number is 1457430597. It was assigned on November 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nestor Dellosa Riel?
Dr. Nestor Dellosa Riel is a psychiatrist in Stockton, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Nestor Dellosa Riel practice?
Dr. Riel practices at 7373 West Ln, Stockton, CA 95210. Dr. Riel's primary practice is Permanente Medical Group Inc in Stockton, California. Dmand AI also links Dr. Riel to 1 group practice or clinic.
What is Dr. Nestor Dellosa Riel's office phone number?
The practice phone on file for Dr. Riel is (209) 476-2000.
What is Dr. Nestor Dellosa Riel's medical license number?
Dr. Riel holds California license A70170, one of the licenses on file in 2 states.
Which states has Dr. Nestor Dellosa Riel been licensed in?
Dmand AI has state licenses on file for Dr. Riel in California (1999 to 2026) and Pennsylvania (1999 to 2004).
What medical group is Dr. Nestor Dellosa Riel part of?
Dr. Riel is linked to The Permanente Medical Group, Inc.
Does Dr. Nestor Dellosa Riel accept Medicare?
Yes. CMS lists Dr. Riel as accepting Medicare assignment.
Is Dr. Nestor Dellosa Riel board certified?
Yes. Dr. Riel is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. Nestor Dellosa Riel go to medical school?
Dr. Riel graduated from University of the Philippines College of Medicine in 1995.
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What drugs does Dr. Nestor Dellosa Riel prescribe most?
In 2024 Medicare Part D data, Dr. Riel's most prescribed drugs by claims were Quetiapine Fumarate, Clonazepam and Lorazepam.
Has Dr. Nestor Dellosa Riel received payments from drug or device companies?
CMS Open Payments shows $50 in general payments to Dr. Riel from 1 company from 2016 to 2016. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Nestor Dellosa Riel been practicing?
Dr. Riel graduated from medical school in 1995, 31 years ago.
What insurance does Dr. Nestor Dellosa Riel accept?
Dr. Riel is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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