MARK M COHEN M.D.
NPI 1194845271
Ophthalmology in Castro Valley, CA

Q: What is Mark Cohen's NPI number?

The NPI number for Mark Cohen is 1194845271. It was assigned to this individual provider in the NPPES registry on March 30, 2007.

Q: What is Mark Cohen'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 Mark Cohen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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 March 30, 2007PECOS Enrolled

20046 LAKE CHABOT RD, CASTRO VALLEY, CA 94546(510) 881-8823 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Mark M Cohen M.d. NPPES

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

MARK M COHEN M.D. (NPI 1194845271) is an individual ophthalmology provider in Castro Valley, California, licensed in California (C027491) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194845271

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameMARK M COHENCredential: M.D.

Location Address20046 LAKE CHABOT RDCastro Valley, CA 94546-5304

Mailing Address21 Kippy CtMoraga, CA 94556-2714 · (925) 376-3963

Phone(510) 881-8823

Sole ProprietorYes

Enumeration DateMarch 30, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1194845271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · C027491

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark M Cohen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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