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ROBERT L SINGER MD AND JAMES N COHN MD
NPI 1902990047
Ophthalmology in Fremont, CA

Active since October 03, 2006
38024 MARTHA AVE, FREMONT, CA 94536(510) 791-2233(510) 791-0795 Get Directions Write a Review

NPPES record last updated: February 8, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Robert L Singer Md And James N Cohn Md NPPES

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

ROBERT L SINGER MD AND JAMES N COHN MD (NPI 1902990047) is a healthcare organization registered as an ophthalmology in Fremont, California and active in the NPI registry since October 2006. The organization lists James N Cohn, Partner, as its authorized official.

NPPES Registry Identity

NPI1902990047
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameROBERT L SINGER MD AND JAMES N COHN MD
Location Address38024 MARTHA AVEFremont, CA 94536
Mailing Address38024 Martha AveFremont, CA 94536 · (510) 791-2233 · Fax (510) 791-0795
Phone(510) 791-2233
Fax(510) 791-0795
Organization SubpartNo
Authorized OfficialJames N CohnPartner · (510) 791-2233
Enumeration DateOctober 3, 2006
Last NPPES UpdateFebruary 8, 2008
✔ NPI 1902990047 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in CA · G3283✔ Licensed in CA · G57505
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.
38024 MARTHA AVE, Fremont, CA 94536
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Other Identifiers 5

Medicare PINYYY50000YCA
Medicare UPINU92036CA
MedicaidGR0030010CA
Medicare UPINA53295CA
Medicare UPINA56013CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 3

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

MS. HOANG ANH XUAN BUI OD
Optometrist
38024 MARTHA AVE
FREMONT, CA 94536
Alameda County (510) 791-2233
DR. ROBERT L SINGER MD
Ophthalmology
38024 MARTHA AVE
FREMONT, CA 94536
Alameda County (510) 791-2233
PEGGY HSU-FEI CHEN O.D
Optometrist
38024 MARTHA AVE
FREMONT, CA 94536
Alameda County (510) 791-2233

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 Robert L Singer MD And James N Cohn MD's NPI number?

The NPI number for Robert L Singer MD And James N Cohn MD is 1902990047. It was assigned to this organization in the NPPES registry on October 3, 2006.

Where is Robert L Singer MD And James N Cohn MD located?

Robert L Singer MD And James N Cohn MD is located at 38024 Martha Ave, Fremont, CA 94536. The listed phone number is (510) 791-2233.

What is Robert L Singer MD And James N Cohn MD's specialty?

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

When was this NPI record last updated?

The NPPES record for Robert L Singer MD And James N Cohn MD was last updated on February 8, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.