PREEMA MEHTA BUCH MD
NPI 1366852865
Ophthalmology in Castro Valley, CA

Active since May 06, 2014PECOS EnrolledAccepts Medicare Assignment
20046 LAKE CHABOT RD, CASTRO VALLEY, CA 94546(510) 881-8823(510) 881-2134 Get Directions Write a Review

NPPES record last updated: November 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 21, 2025, Aug 26, 2019, Jul 11, 2018 and 1 more (4 updates tracked since 2018).

About Preema Mehta Buch Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PREEMA MEHTA BUCH MD (NPI 1366852865) is an individual ophthalmology provider in Castro Valley, California, licensed in California (A168154) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS and is a graduate of Howard University College Of Medicine (2014).

NPPES Registry Identity

NPI1366852865
Entity TypeIndividualFemale
Primary Taxonomy207W00000X
Provider Legal NamePREEMA MEHTA BUCHCredential: MD
Location Address20046 LAKE CHABOT RDCastro Valley, CA 94546-5304
Mailing Address20046 Lake Chabot RdCastro Valley, CA 94546-5304 · (510) 881-8823 · Fax (510) 881-2134
Fax(510) 881-2134
Sole ProprietorNo
Medical School CMSHoward University College Of MedicineGraduated 2014
Enumeration DateMay 6, 2014
Last NPPES UpdateNovember 21, 20254 updates tracked since enumeration
NPPES CertifiedNovember 21, 2025
NPI 1366852865 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License Licensed in CA · A168154
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
20046 LAKE CHABOT RD, Castro Valley, CA 94546

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Preema Mehta Buch Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6800141664
PECOS Enrollment IDI20220429001680
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient problem focused exam of visual system 92012
This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.
314 services166 patients
Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
290 services268 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
129 services117 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
106 services100 patients
Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
94 services92 patients
New patient complete exam of visual system 92004
A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.
63 services63 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94546 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Optometrist
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Ophthalmology
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Ophthalmology
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Ophthalmology
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Optometrist
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Ophthalmology
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Ophthalmology
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Optometrist
20046 LAKE CHABOT RD
CASTRO VALLEY, CA 94546

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Preema Buch's NPI number?

The NPI number for Preema Buch is 1366852865. It was assigned to this individual provider in the NPPES registry on May 6, 2014.

Where is Preema Buch located?

Preema Buch practices at 20046 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 881-8823.

What is Preema Buch's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Preema Buch enrolled in Medicare?

Yes. Preema Buch is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Preema Buch was last updated on November 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.