Dr. Donald Gordon Tohm, MD
- Medicare services, 2021
- 457
- Part D claims, 2022
- 63
- Industry payments
- $407
- Affiliated sites
- 1
- Insurance carriers
- 2
- Practice address
- 555 N 13th Avenue, Upland, CA 91786
- Practice phone
- Call (909) 982-8846
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pacific Eye Institute - Upland
Surgery Center - Medicare-Certified · Upland, California
Find Dr. Tohm's professional email, personal email and mobile number
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Dr. Donald Gordon Tohm is an ophthalmologist in Upland, California
Dr. Tohm practices at Pacific Eye Institute - Upland in Upland, California.
Dr. Tohm's NPI, 1669407268, was assigned on July 11, 2006. Dr. Tohm graduated from Loma Linda University School Of Medicine in 1984. Dr. Tohm holds California license G55650.
- NPI
- 1669407268NPI Registry (opens in a new tab)
- NPI enumeration date
- July 11, 2006
- NPI status
- Active
- Practice phone
- (909) 982-8846
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Donald Gordon Tohm practices at Pacific Eye Institute - Upland in Upland, California
Dr. Tohm's primary practice is Pacific Eye Institute - Upland, at 555 N 13th Avenue, Upland, CA 91786. The practice phone is (909) 982-8846.
- Pacific Eye Institute - Upland555 N 13th Avenue, Upland, CA 91786Phone(909) 982-8846
Source: Dmand AI Affiliation Data
Dr. Donald Gordon Tohm is affiliated with 1 site of care
Dr. Tohm's primary practice is Pacific Eye Institute - Upland in Upland, California.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Donald Gordon Tohm's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tohm practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pacific Eye Institute - Upland | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Donald Gordon Tohm is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Tohm's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Tohm is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Tohm is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Ophthalmologists near Dr. Tohm
Counts of ophthalmologists 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. Donald Gordon Tohm billed Medicare for 457 services in 2021
CMS data shows 457 Medicare services from Dr. Tohm across 8 procedure codes in 2021. Medicare paid $30,075 for them.
Dr. Tohm's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 2892021: 22522%
- Tests and treatments
- 2020: 3922021: 21944%
- Surgery
- 2020: 352021: 1363%
Where Dr. Tohm's Medicare services took place, 2021
- In an office44497%
- In a facility133%
Dr. Tohm compared with the California median for ophthalmologists, 2021
- Dr. Tohm
- California median
- Medicare services
- 457vs 1,07958% below
- Part D claims
- 63vs 61890% below
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Tohm's most billed Medicare procedure codes, 2021
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. Tohm and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Donald Gordon Tohm's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Tohm's median patient age at 73, with 88% women.
Dr. Tohm's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women88%
- Men13%
Source: Dmand AI Patient Panel Data
Dr. Donald Gordon Tohm wrote 63 Medicare Part D claims in 2022
In 2022, Dr. Tohm wrote 63 Medicare Part D claims. They cover 3 drugs, with $1,778 in total drug cost. In 2021, CMS named 657 claims across 11 drugs.
Dr. Tohm's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 6572022: 6390%
Drugs named by CMS: 3 in 2022, 11 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Donald Gordon Tohm received $407 in industry payments from 2016 to 2019
CMS Open Payments shows 18 general payments to Dr. Tohm from 7 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 91% of the total. Alcon Laboratories Inc paid the most, $164.
General payments to Dr. Tohm by program year, 2016 to 2019
General payments to Dr. Tohm by kind, 2016 to 2019
- Food and beverage$37091%
- Education$389%
Companies that paid Dr. Tohm the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Donald Gordon Tohm graduated from Loma Linda University School Of Medicine
Dr. Tohm graduated from Loma Linda University School Of Medicine in 1984.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Donald Gordon Tohm accepts plans from 2 insurance carriers
Dr. Tohm is in network with 2 carriers, including Molina and Elevance. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Molina
- Elevance
Plan types Dr. Tohm accepts, by number of carriers
- HMO1
- Medicare1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Donald Gordon Tohm'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 DataDmand AI Org Hierarchy 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Donald Gordon Tohm
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. Donald Gordon Tohm's NPI number?
Dr. Donald Gordon Tohm's NPI number is 1669407268. It was assigned on July 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Donald Gordon Tohm?
Dr. Donald Gordon Tohm is an ophthalmologist in Upland, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Donald Gordon Tohm practice?
Dr. Tohm practices at 555 N 13th Avenue, Upland, CA 91786. Dr. Tohm's primary practice is Pacific Eye Institute - Upland in Upland, California.
What is Dr. Donald Gordon Tohm's office phone number?
The practice phone on file for Dr. Tohm is (909) 982-8846.
What is Dr. Donald Gordon Tohm's medical license number?
Dr. Tohm holds California license G55650.
Does Dr. Donald Gordon Tohm accept Medicare?
Yes. CMS data shows Dr. Tohm billed Medicare for 457 services in 2021.
Is Dr. Donald Gordon Tohm board certified?
Yes. Dr. Tohm is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Donald Gordon Tohm bill to Medicare?
In 2021, Dr. Tohm's most billed Medicare services were office visit, established patient (99213), eye exam or test (92002) and office visit, established patient (99212).
Where did Dr. Donald Gordon Tohm go to medical school?
Dr. Tohm graduated from Loma Linda University School Of Medicine in 1984.
What drugs does Dr. Donald Gordon Tohm prescribe most?
In 2022 Medicare Part D data, Dr. Tohm's most prescribed drugs by claims were Latanoprost, Timolol Maleate and Dorzolamide-Timolol.
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Has Dr. Donald Gordon Tohm received payments from drug or device companies?
CMS Open Payments shows $407 in general payments to Dr. Tohm from 7 companies from 2016 to 2019. The largest total came from Alcon Laboratories Inc.
How long has Dr. Donald Gordon Tohm been practicing?
Dr. Tohm graduated from medical school in 1984, 42 years ago.
What insurance does Dr. Donald Gordon Tohm accept?
Dr. Tohm is in network with 2 carriers, including Molina and Elevance. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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