DR. CHARLES WILLIAM GUSTAV EIFRIG M.D.
NPI 1306812979
Ophthalmology - Retina Specialist in Laguna Hills, CA

Q: What is Charles Eifrig's NPI number?

The NPI number for Charles Eifrig is 1306812979. It was assigned to this individual provider in the NPPES registry on February 24, 2006.

Q: What is Charles Eifrig's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Q: When was this NPI record last updated?

The NPPES record for Charles Eifrig was last updated on March 31, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 February 24, 2006PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

23521 PASEO DE VALENCIA, SUITE 207 (TAJ MAJAL BUILDING), LAGUNA HILLS, CA 92653(949) 707-5125 Get Directions Write a Review

NPPES record last updated: March 31, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Charles William Gustav Eifrig M.d. NPPES

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

DR. CHARLES WILLIAM GUSTAV EIFRIG M.D. (NPI 1306812979) is an individual retina specialist in Laguna Hills, California, licensed in California (C53104) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of University Of North Carolina At Chapel Hill School Of Medicine (1997).

NPPES Registry Identity

NPI1306812979

Entity TypeIndividualMale

Primary Taxonomy207WX0107X

Provider Legal NameDR. CHARLES WILLIAM GUSTAV EIFRIGCredential: M.D.

Location Address23521 PASEO DE VALENCIA, SUITE 207 (TAJ MAJAL BUILDING)Laguna Hills, CA 92653-3107

Mailing Address23521 Paseo De Valencia, Suite 207 (taj Majal Building)Laguna Hills, CA 92653-3107 · (949) 707-5125

Phone(949) 707-5125

Sole ProprietorNo

Medical School CMSUniversity Of North Carolina At Chapel Hill School Of MedicineGraduated 1997

Enumeration DateFebruary 24, 2006

Last NPPES UpdateMarch 31, 2017

✔ NPI 1306812979 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0107X

License✔ Licensed in CA · C53104

Definition

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

Also ListedOphthalmologyTaxonomy 207W00000X · License 200300335 (NC), C53104 (CA)

23521 PASEO DE VALENCIA, Laguna Hills, CA 92653

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Other Identifiers 20

OtherP00102182Rr Medicare Individual Id

Other562043271Mamsi Group Id

Other562043271Aetna Hmo/ppo Group Id

Other562043271Medcost Group Id

Other26600Opticare Individual Id

Other562043271Opticare Group Id

Medicaid89134EFNC

Medicaid89014T8NC

Other014T8Bcbs Group Id

Other7674444Aetna Ppo Individual Id

OtherDB4007Railroad Medicare Group

Other2090301United Healthcare Individ

Other2115757Mamsi Individual Id

Medicare ID-Type Unspecified2016814Individual Id

OtherC7150Medcost Individual Id

Other562043271United Healthcare Group

Other3201207Aetna Hmo Individual Id

Medicare UPINH44557NC

Other134EFBcbs Individual Id

Medicare ID-Type Unspecified2333843Medicare Group Id

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

Dr. Charles William Gustav Eifrig M.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 ID2961433198

PECOS Enrollment IDI20080411000262

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 Reassignment

Medicare enrollment records show Charles Eifrig reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Retina Associates Of Orange County

12 mi

Ophthalmology

2010 E FIRST ST, SUITE 140
Santa Ana, CA 92705

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

NPI 1114105384 (714) 543-6020

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 18

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.

Injection, faricimab-svoa, 0.1 mg J2777

Faricimab-svoa is a medication given through an injection into the eye to treat certain eye conditions. The 0.1 mg dosage helps control disease progression, improving vision and eye health. The procedure is done by a healthcare professional.

39,544 services123 patients

Injection, ranibizumab, 0.1 mg J2778

Ranibizumab is a medication given via injection to treat certain eye conditions like age-related macular degeneration. It works by slowing vision loss and in some cases, improving vision by blocking abnormal blood vessel growth in the eye.

4,107 services161 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

3,481 services1,283 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

2,096 services328 patients

Extended exam of the back part of the eye with optic nerve drawing 92202

This procedure involves a detailed examination of the back part of your eye, focusing on the optic nerve, a crucial component for vision. A drawing or map of the optic nerve is created to help track any changes over time. This can help detect eye diseases early.

1,614 services1,017 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.

1,456 services1,033 patients

Injection, aflibercept, 1 mg J0178

Aflibercept injection is a treatment for certain eye conditions that affect vision. It works by blocking abnormal blood vessel growth and leakage in the eye, which can cause vision loss. The medication is administered directly into the eye by a healthcare professional.

700 services62 patients

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.

656 services369 patients

Extended exam of the back part of the eye with retinal drawing 92201

This procedure involves a detailed examination of the back part of your eye, including the retina. It helps identify any abnormalities or issues. A retinal drawing is made to record findings. It's non-invasive and crucial for maintaining eye health.

573 services435 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

197 services197 patients

Compounded drug, not otherwise classified J7999

A compounded drug is a personalized medication created to meet unique patient needs. If you can't take standard drugs due to allergies or need a specific dosage not commercially available, a pharmacist can mix ingredients to make a drug specifically for you.

129 services37 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

96 services74 patients

2d ultrasound scan of eye tissue and structures 76512

A 2D ultrasound scan of eye tissue and structures is a non-invasive procedure that uses sound waves to create images of your eye. It helps doctors to examine your eye's internal structures, detect abnormalities, and plan for treatments if needed.

93 services69 patients

Exam of retinal blood vessels using a special camera after injection of a dye 92235

This procedure, known as a fluorescein angiography, involves taking images of the back of your eye. A dye is injected into your arm that travels to your eye, highlighting the blood vessels in your retina. This helps identify any abnormalities.

42 services41 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

40 services30 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.

35 services31 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

28 services26 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92653 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

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.

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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Reported Quality Measures

Diabetes: Eye Exam

Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period

100%107 patients5/55-star benchmark: 100%

Pneumococcal Vaccination Status for Older Adults

Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine

64%263 patients3/55-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.

VERONICA MUNOZ MT

Massage Therapist

23521 PASEO DE VALENCIA, SUITE B7
LAGUNA HILLS, CA 92653

Orange County (949) 597-0007

LIDO CHEN, M.D. INC

Specialist

23521 PASEO DE VALENCIA, SUITE 204
LAGUNA HILLS, CA 92653

Orange County (949) 458-2026

DR. JORGE A RIVERO MD

Family Medicine (Geriatric Medicine)

23521 PASEO DE VALENCIA, SUITE 108
LAGUNA HILLS, CA 92653

Orange County (949) 588-7262

DR. CHI-WHEI LIN M.D.

Internal Medicine

23521 PASEO DE VALENCIA, SUITE 310
LAGUNA HILLS, CA 92653

Orange County (949) 716-4555

MR. ALAN MASAAKI OOKA APRN, BC, P-MHNP

Nurse Practitioner (Psychiatric/Mental Health)

23521 PASEO DE VALENCIA, SUITE 206A
LAGUNA HILLS, CA 92653

Orange County (949) 768-6845

MRS. ELIZABETH ORRAS MFT

Marriage & Family Therapist

23521 PASEO DE VALENCIA, 206A
LAGUNA HILLS, CA 92653

Orange County (949) 768-6845

DR. PETER NADER ABAS D.D.S.

Dentist (General Practice)

23521 PASEO DE VALENCIA, SUITE 112
LAGUNA HILLS, CA 92653

Orange County (949) 586-1127

HOMER KAM YUN LEW D.O.

Internal Medicine

23521 PASEO DE VALENCIA, SUITE 108
LAGUNA HILLS, CA 92653

Orange County (949) 588-7262

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 Charles Eifrig's NPI number?

The NPI number for Charles Eifrig is 1306812979. It was assigned to this individual provider in the NPPES registry on February 24, 2006.

Where is Charles Eifrig located?

Charles Eifrig practices at 23521 Paseo De Valencia Suite 207 (taj Majal Building), Laguna Hills, CA 92653. The listed phone number is (949) 707-5125.

What is Charles Eifrig's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is Charles Eifrig enrolled in Medicare?

Yes. Charles Eifrig 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.

Which organization bills Medicare for Charles Eifrig's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Eifrig reassigns Medicare benefits to Retina Associates Of Orange County (Santa Ana, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charles Eifrig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Charles Eifrig was last updated on March 31, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.