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

Q: 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.

Q: What is Preema Buch's specialty?

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

Q: 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 11 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.

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: October 25, 2026.

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

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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

Phone(510) 881-8823

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

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

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.

Medicare Billing Reassignments

Medicare enrollment records show Preema Buch reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Eye Specialties Medical Group Inc.

Same address

Ophthalmology

20046 LAKE CHABOT RD
Castro Valley, CA 94546

Reassigned Medicare billing, California enrollment
4 clinicians in this Medicare group

NPI 1568030260 (510) 881-8823

V. Nicholas Batra M.D. Inc.

2.4 mi

Ophthalmology

15051 HESPERIAN BLVD, SUITE A
San Leandro, CA 94578

Reassigned Medicare billing, California enrollment
10 clinicians in this Medicare group

NPI 1649344722 (510) 276-1212

Temple Faculty Practice Plan Inc

2,507 mi

Internal Medicine

3322 N BROAD ST
Philadelphia, PA 19140

Reassigned Medicare billing, Pennsylvania enrollment
1,991 clinicians in this Medicare group

NPI 1073095915 (215) 707-1800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

KELSEY SCHULTZ

Optometrist