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DR. STUART ALEXANDER CHALFIN M.D.
NPI 1699871608
Urology in Los Alamitos, CA

Active since September 16, 2006
3791 KATELLA AVE, SUITE 200, LOS ALAMITOS, CA 90720(562) 598-6166(562) 799-8210 Get Directions Write a Review

NPPES record last updated: March 19, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Stuart Alexander Chalfin M.d. NPPES

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

DR. STUART ALEXANDER CHALFIN M.D. (NPI 1699871608) is an individual urology provider in Los Alamitos, California, licensed in California (G34287) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1699871608
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameDR. STUART ALEXANDER CHALFINCredential: M.D.
Location Address3791 KATELLA AVE, SUITE 200Los Alamitos, CA 90720-3105
Mailing Address3791 Katella Ave, Suite 200Los Alamitos, CA 90720-3105 · (562) 598-6166 · Fax (562) 799-8210
Phone(562) 598-6166
Fax(562) 799-8210
Sole ProprietorNo
Enumeration DateSeptember 16, 2006
Last NPPES UpdateMarch 19, 2008
✔ NPI 1699871608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in CA · G34287
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
3791 KATELLA AVE, Los Alamitos, CA 90720
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Other Identifiers 5

Medicaid00G342870CA
Medicare UPINA91578CA
Medicare PINWG34287BCA
Medicare PINWG34287CCA
Medicare PINWG34287ACA

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
82%861 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

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

DR. KY TRAN M.D.
Internal Medicine
3791 KATELLA AVE, STE 104
LOS ALAMITOS, CA 90720
Orange County (562) 430-1235
MR. GRANT G. SARKISYAN M.D.
Surgery
3791 KATELLA AVE, #201 VASCULAR & GENERAL SURGERY ASSOC.
LOS ALAMITOS, CA 90720
Orange County (562) 596-6736
DR. OMID OMIDVAR M.D.
Psychiatry & Neurology (Neurology)
3791 KATELLA AVE, SUITE 106
LOS ALAMITOS, CA 90720
Orange County (562) 430-3114
CHINENYE EGWUONWU NP
Nurse Practitioner (Obstetrics & Gynecology)
3791 KATELLA AVE, STE. 108
LOS ALAMITOS, CA 90720
Orange County (562) 431-3521
DR. LAWRENCE GRANT WALDROP M.D.
Specialist
3791 KATELLA AVE, SUITE 104
LOS ALAMITOS, CA 90720
Orange County (562) 493-6461
HAROLD M LIN MD A MEDICAL CORPORATION
Internal Medicine
3791 KATELLA AVE, SUITE105
LOS ALAMITOS, CA 90720
Orange County (562) 594-6693
NICOLAS DIKIO MD INC
Obstetrics & Gynecology
3791 KATELLA AVE, STE 209
LOS ALAMITOS, CA 90720
Orange County (562) 594-0806
HAROLD M LIN M.D.
Internal Medicine
3791 KATELLA AVE, SUITE 105
LOS ALAMITOS, CA 90720
Orange County (562) 594-6693

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 Stuart Chalfin's NPI number?

The NPI number for Stuart Chalfin is 1699871608. It was assigned to this individual provider in the NPPES registry on September 16, 2006.

Where is Stuart Chalfin located?

Stuart Chalfin practices at 3791 Katella Ave Suite 200, Los Alamitos, CA 90720. The listed phone number is (562) 598-6166.

What is Stuart Chalfin's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

When was this NPI record last updated?

The NPPES record for Stuart Chalfin was last updated on March 19, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.