Preema Mehta Buch, MD
Ophthalmology Physician · Castro Valley, CA
Preema Mehta Buch, MD is an ophthalmology physician with a practice address in Castro Valley, California, and NPI 1366852865, issued on May 6, 2014. Check the license (California A168154, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Preema Mehta Buch
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A168154 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20046 Lake Chabot RD, Castro Valley, CA 94546
- Phone
- (510) 881-8823
- Enumerated
- May 6, 2014
- Record last updated
- Nov 21, 2025
- Fax
- (510) 881-2134
- Medicare enrollment
- Enrolled (PECOS I20220429001680); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 20046 Lake Chabot RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Cohen, M.D.Ophthalmology Physician1194845271
- Robert Edelman, M.D.Ophthalmology Physician1184832313
- Sampson Fong, O. D.Optometrist1396861522
- Arshjot HiraOptometrist1801405980
- Mark Lurie, M.D.Ophthalmology Physician1750315123
- Kelsey SchultzOptometrist1164044111
Verify Preema Mehta Buch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A168154Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average ophthalmology physician in 2024
812 Medicare Part D claims for 166 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Latanoprost234 claims
- Timolol Maleate86 claims
- Dorzolamide-Timolol69 claims
- Brimonidine Tartrate61 claims
- Simbrinza59 claims
- Erythromycin39 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.
Industry payments in 2024: $210.71
9 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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.
Bills Medicare through one group practice
- Eye Specialties Medical Group Inc.Castro Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Preema Mehta Buch among 2,899 ophthalmology physician records in California
Preema Mehta Buch, MD 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 2014, is newer than 82% of them.
- NPI issued2014 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2001 among the 1,907 with a school on file
- Record last updated2025 · 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 Castro Valley → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Mark Cohen, M.D.Castro Valley, CA 945461194845271
- Robert Edelman, M.D.Castro Valley, CA 945461184832313
- Leonard Goldschmidt, M.D.Castro Valley, CA 945461619942992
- Barry Kerman, M.DCastro Valley, CA 945461265454375
- Mark Lurie, M.D.Castro Valley, CA 945461750315123
- Neha Shah, M.D.Castro Valley, CA 945461376733402
- Lee Du, MDHayward, CA 945451477631224
- Leonard Newman, MDHercules, CA 945471902950132
Common questions
What is Preema Mehta Buch, MD's NPI number?
Preema Mehta Buch, MD's National Provider Identifier (NPI) is 1366852865, issued on May 6, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Preema Mehta Buch, MD located?
The NPPES record lists a practice address at 20046 Lake Chabot RD, Castro Valley, CA, 94546. Phone: (510) 881-8823. Providers update this record themselves, so call before visiting.
How can I verify Preema Mehta Buch, MD's license?
NPPES lists California license number A168154, 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 Preema Mehta Buch, MD prescribe under Medicare Part D?
In 2024, Preema Mehta Buch, MD had 812 Medicare Part D claims for 166 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
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.