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DR. NAHAN ERFAN O.D.
NPI 1861621435
Optometrist in Fontana, CA

Active since July 04, 2009PECOS EnrolledAccepts Medicare Assignment
9961 SIERRA AVE, FONTANA, CA 92335(909) 427-5000 Get Directions Write a Review

NPPES record last updated: December 6, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 6, 2021, Dec 21, 2015 (2 updates tracked since 2015).

About Dr. Nahan Erfan O.d. NPPES

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

DR. NAHAN ERFAN O.D. (NPI 1861621435) is an individual optometrist in Fontana, California, licensed in California (13731-T) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS and is a graduate of Pennsylvania College Of Optometry (2008).

NPPES Registry Identity

NPI1861621435
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. NAHAN ERFANCredential: O.D.
Location Address9961 SIERRA AVEFontana, CA 92335-6720
Mailing Address120 Nightingale DrAliso Viejo, CA 92656-1712 · (949) 463-8080
Phone(909) 427-5000
Sole ProprietorYes
Medical School CMSPennsylvania College Of OptometryGraduated 2008
Enumeration DateJuly 4, 2009
Last NPPES UpdateDecember 6, 20212 updates tracked since enumeration
NPPES CertifiedDecember 6, 2021
✔ NPI 1861621435 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CA · 13731-T
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
9961 SIERRA AVE, Fontana, CA 92335
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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 and accepts Medicare assignment

Dr. Nahan Erfan O.d. 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 ID547404691
PECOS Enrollment IDI20130911000859
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 92335 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
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 20

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

SHEILA ANN VANALLEN PT
Physical Therapist
9961 SIERRA AVE, BUILDING 3A
FONTANA, CA 92335
San Bernardino County (909) 427-7727
MR. JAMES DAVID KILLEEN III M.D.
Pediatrics
9961 SIERRA AVE, KAISER PERMANENTE FONTANA - PEDIATRICS
FONTANA, CA 92335
San Bernardino County (909) 427-6960
MR. DHIRESH N PATEL RPH
Pharmacist
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 302-8018
MS. STELLA MARIS CARLOS R.D.
Dietitian, Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 472-7185
KADETTE KELLY CRNA
Nurse Anesthetist, Certified Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
YAEL STEINFELD NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
SCOTT SWARTZ NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
ROBERT M. THEAL MD
Family Medicine
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910

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 Nahan Erfan's NPI number?

The NPI number for Nahan Erfan is 1861621435. It was assigned to this individual provider in the NPPES registry on July 4, 2009.

Where is Nahan Erfan located?

Nahan Erfan practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-5000.

What is Nahan Erfan's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Nahan Erfan enrolled in Medicare?

Yes. Nahan Erfan 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 Nahan Erfan was last updated on December 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.