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Dr. Ronald D. Tamaru, MD
NPI1477631166
- Part D claims, 2018
- 173
- Publications
- 2
- Industry payments
- $2,340
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 2155 Iron Point Rd, Folsom, CA 95630-8707
- Practice phone
- Call (916) 817-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Tamaru's professional email, personal email and mobile number
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Dr. Ronald D. Tamaru is an ophthalmologist in Folsom, California
Dr. Tamaru practices in Folsom, California.
Dr. Tamaru's NPI, 1477631166, was assigned on November 1, 2006. Dr. Tamaru graduated from UCSF School of Medicine in 1982. Dr. Tamaru holds California license G51126.
NPI and contact details
- NPI
- 1477631166NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Practice phone
- (916) 817-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Ronald D. Tamaru's practice address is in Folsom, California
Dr. Tamaru's practice address in the NPI Registry is 2155 Iron Point Rd, Folsom, CA 95630-8707. The practice phone is (916) 817-5000.
- NPI Registry address2155 Iron Point Rd, Folsom, CA 95630-8707Phone(916) 817-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Ronald D. Tamaru's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tamaru practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Tamaru's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ronald D. Tamaru is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Tamaru's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Tamaru is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Tamaru is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Ophthalmologists near Dr. Tamaru
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
2,621ophthalmologists in California
5ophthalmologists in Folsom
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ronald D. Tamaru wrote 173 Medicare Part D claims in 2018
In 2018, Dr. Tamaru wrote 173 Medicare Part D claims. They cover 6 drugs, with $17,893 in total drug cost. In 2017, CMS named 857 claims across 12 drugs.
Part D claims, 2018173
Drugs named by CMS6
Total drug cost$17,893
Dr. Tamaru's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 8572018: 17380%
Drugs named by CMS: 6 in 2018, 12 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Ronald D. Tamaru has 2 publications on record
Dmand AI links 2 papers to Dr. Tamaru. Dr. Tamaru's most frequent co-author is Mark Joel Mannis, MD.
Papers2
Dr. Tamaru's most frequent co-authors
- Mark Joel Mannis, MD1 shared paper
Recent publications by Dr. Tamaru
See who Dr. Tamaru researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tamaru works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ronald D. Tamaru received $2,340 in industry payments from 2017 to 2025
CMS Open Payments shows 19 general payments to Dr. Tamaru from 14 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Sight Sciences, Inc. paid the most, $276.
General payments to Dr. Tamaru by program year, 2017 to 2025
Companies that paid Dr. Tamaru the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ronald D. Tamaru has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Tamaru, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Tamaru
- 2011
- CMS Stage 1 2012
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Ronald D. Tamaru graduated from UCSF School of Medicine
Dr. Tamaru graduated from UCSF School of Medicine in 1982. Dr. Tamaru is a member of Alta California Ophthalmology Society, AAO, American Board of Ophthalmology, Austin Ophthalmology Society and California Medical Association.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Sources for Dr. Ronald D. Tamaru'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 |
| 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. Ronald D. Tamaru
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. Ronald D. Tamaru's NPI number?
Dr. Ronald D. Tamaru's NPI number is 1477631166. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald D. Tamaru?
Dr. Ronald D. Tamaru is an ophthalmologist in Folsom, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ronald D. Tamaru practice?
Dr. Tamaru practices at 2155 Iron Point Rd, Folsom, CA 95630-8707.
What is Dr. Ronald D. Tamaru's office phone number?
The practice phone on file for Dr. Tamaru is (916) 817-5000.
What is Dr. Ronald D. Tamaru's medical license number?
Dr. Tamaru holds California license G51126.
Is Dr. Ronald D. Tamaru board certified?
Yes. Dr. Tamaru is board certified in ophthalmology by the American Board of Ophthalmology.
Where did Dr. Ronald D. Tamaru go to medical school?
Dr. Tamaru graduated from UCSF School of Medicine in 1982.
What drugs does Dr. Ronald D. Tamaru prescribe most?
In 2018 Medicare Part D data, Dr. Tamaru's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. Ronald D. Tamaru received payments from drug or device companies?
CMS Open Payments shows $2,340 in general payments to Dr. Tamaru from 14 companies from 2017 to 2025. The largest total came from Sight Sciences, Inc.
How long has Dr. Ronald D. Tamaru been practicing?
Dr. Tamaru graduated from medical school in 1982, 44 years ago.
Does Dr. Ronald D. Tamaru do research?
Dmand AI links 2 publications to Dr. Tamaru.
Who does Dr. Ronald D. Tamaru publish with?
Dr. Tamaru's most frequent co-authors are Mark Joel Mannis, MD (1 shared paper).
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