Marvin C. Mah, OD
- Industry payments
- $22
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 3800 Kilroy Airport Way, Long Beach, CA 90806
- Practice phone
- Call (510) 438-0508
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marvin C Mah, OD, Inc
Long Beach, California
Find Marvin Mah'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.
Marvin C. Mah is an optometrist in Long Beach, California
Marvin Mah practices at Marvin C Mah, OD, Inc in Long Beach, California.
Marvin Mah's NPI, 1245228402, was assigned on October 12, 2005. Marvin Mah holds California license 006996T.
- NPI
- 1245228402NPI Registry (opens in a new tab)
- NPI enumeration date
- October 12, 2005
- NPI status
- Active
- Practice phone
- (510) 438-0508
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Marvin C. Mah practices at Marvin C Mah, OD, Inc in Long Beach, California
Marvin Mah's primary practice is Marvin C Mah, OD, Inc, at 3800 Kilroy Airport Way, Long Beach, CA 90806 in Los Angeles County. The practice phone is (510) 438-0508.
- Marvin C Mah, OD, Inc3800 Kilroy Airport Way, Long Beach, CA 90806 · Los Angeles CountyPhone(510) 438-0508
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Marvin C. Mah is affiliated with 2 sites of care and 1 medical group
Marvin Mah's primary practice is Marvin C Mah, OD, Inc in Long Beach, California. Dmand AI also links Marvin Mah to 1 group practice or clinic and 1 medical group, each 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 Marvin C. Mah's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marvin Mah practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marvin C Mah, OD, Inc | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Marvin C. Mah is one of 7,206 optometrists in California
Optometrist is Marvin Mah's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Marvin Mah is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Marvin Mah
Counts of optometrists 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
Marvin C. Mah's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Marvin Mah's median patient age at 71, with 38% women.
Marvin Mah's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women38%
- Men38%
Source: Dmand AI Patient Panel Data
Marvin C. Mah received $22 in industry payments in 2025
CMS Open Payments shows 1 general payment to Marvin Mah from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $22.
Companies that paid Marvin Mah the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marvin C. Mah'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 |
| 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 Marvin C. Mah
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marvin C. Mah's NPI number?
Marvin C. Mah's NPI number is 1245228402. It was assigned on October 12, 2005, and it is active in the NPI Registry.
What does Marvin C. Mah specialize in?
Marvin C. Mah is an optometrist in Long Beach, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Marvin C. Mah practice?
Marvin Mah practices at 3800 Kilroy Airport Way, Long Beach, CA 90806. Marvin Mah's primary practice is Marvin C Mah, OD, Inc in Long Beach, California. Dmand AI also links Marvin Mah to 1 group practice or clinic and 1 medical group.
What is Marvin C. Mah's office phone number?
The practice phone on file for Marvin Mah is (510) 438-0508.
What is Marvin C. Mah's medical license number?
Marvin Mah holds California license 006996T.
Has Marvin C. Mah received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to Marvin Mah from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Marvin C. Mah been practicing?
Marvin Mah's NPI was assigned in 2005.
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