Douglas Marshall Engh, M.D. ,F.A.C.S., INC.
Ophthalmology Physician · Valencia, CA
Douglas Marshall Engh, M.D. ,F.A.C.S., INC. is an ophthalmology physician with a practice address in Valencia, California, and NPI 1538249099, issued on Oct 17, 2006. Check the license (California G50142, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Douglas Marshall Engh
- Credential
- M.D. ,F.A.C.S., INC.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G50142 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25775 Mcbean Pkwy, Valencia, CA 91355
- Phone
- (661) 253-5000
- Enumerated
- Oct 17, 2006
- Record last updated
- Dec 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (661) 259-9467
- Medicaid ID
- 00G501421 CA
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 25775 Mcbean Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Douglas Marshall Engh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50142Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average ophthalmology physician in 2024
650 Medicare Part D claims for 233 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Latanoprost264 claims
- Dorzolamide-Timolol86 claims
- Timolol Maleate85 claims
- Brimonidine Tartrate25 claims
- Tobramycin-Dexamethasone25 claims
- Prednisolone Acetate18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $107.24
4 payments; by number, the most common kind was food and beverage; the largest payer was Dompe US, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Douglas Marshall Engh among 2,899 ophthalmology physician records in California
Douglas Marshall Engh, M.D. ,F.A.C.S., INC. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2010 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Valencia → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Nathan Abraham, M.D.Valencia, CA 913551306224456
- Pelin Celiker, M.D.Valencia, CA 913551598405847
- Herbert Goldman, MDValencia, CA 913551699707224
- Brian Gross, M.D.Valencia, CA 913551083620066
- Craig Helm, M.D.Valencia, CA 913551588678791
- Jing Jia, MDValencia, CA 913551093384034
- Sara Jones-Gomberg, MDValencia, CA 913551588723159
- Brian Nguyen, MDValencia, CA 913551912469792
Common questions
What is Douglas Marshall Engh, M.D. ,F.A.C.S., INC.'s NPI number?
Douglas Marshall Engh, M.D. ,F.A.C.S., INC.'s National Provider Identifier (NPI) is 1538249099, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Marshall Engh, M.D. ,F.A.C.S., INC. located?
The NPPES record lists a practice address at 25775 Mcbean Pkwy, Valencia, CA, 91355. Phone: (661) 253-5000. Providers update this record themselves, so call before visiting.
How can I verify Douglas Marshall Engh, M.D. ,F.A.C.S., INC.'s license?
NPPES lists California license number G50142, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas Marshall Engh, M.D. ,F.A.C.S., INC. prescribe under Medicare Part D?
In 2024, Douglas Marshall Engh, M.D. ,F.A.C.S., INC. had 650 Medicare Part D claims for 233 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Douglas Marshall Engh, M.D. ,F.A.C.S., INC.'s MIPS final score?
The 2023 MIPS final score is 74.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.