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DR. JAMES ALLEN GAMMON MD
NPI 1598800062
Ophthalmology in Modesto, CA

Active since February 21, 2007PECOS EnrolledAccepts Medicare Assignment
16.32/100
CMS Quality Rating
500 COFFEE ROAD, SUITE F, MODESTO, CA 95355(209) 522-7362(209) 522-7314 Get Directions Write a Review

NPPES record last updated: October 1, 2012. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. James Allen Gammon Md NPPES

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

DR. JAMES ALLEN GAMMON MD (NPI 1598800062) is an individual ophthalmology provider in Modesto, California, licensed in California (C334380) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1969).

NPPES Registry Identity

NPI1598800062
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. JAMES ALLEN GAMMONCredential: MD
Location Address500 COFFEE ROAD, SUITE FModesto, CA 95355
Mailing Address500 Coffee Road, Suite FModesto, CA 95355 · (209) 522-8004 · Fax (209) 522-7314
Phone(209) 522-7362
Fax(209) 522-7314
Sole ProprietorYes
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1969
Enumeration DateFebruary 21, 2007
Last NPPES UpdateOctober 1, 2012
✔ NPI 1598800062 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in CA · C334380
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.
500 COFFEE ROAD, Modesto, CA 95355
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Other Names 1

Professional Name (2)J. Allen Gammon Md

Other Identifiers 2

Medicare ID-Type Unspecified00C334380
Medicare UPINA35277

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. James Allen Gammon Md 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 ID1850496662
PECOS Enrollment IDI20070423000337
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.

Areas of Expertise CMS Part B claims 10

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.

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.
318 services246 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.
107 services101 patients
Removal of cataract with insertion of prosthetic lens 66984
This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.
46 services34 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
40 services32 patients
New patient complete exam of visual system 92004
A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.
37 services37 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
29 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95355 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
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.

16.32/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost54.41

Reported Quality Measures

Age-Related Macular Degeneration (AMD): Counseling on Antioxidant Supplement
Percentage of patients aged 50 years and older with a diagnosis of age-related macular degeneration (AMD) or their caregiver(s) who were counseled within 12 months on the benefits and/or risks of the Age-Related Eye Disease Study (AREDS) formulation for…
67%103 patients3/55-star benchmark: 100%
Age-Related Macular Degeneration (AMD): Dilated Macular Examination
Percentage of patients aged 50 years and older with a diagnosis of age-related macular degeneration (AMD) who had a dilated macular examination performed which included documentation of the presence or absence of macular thickening or geographic atrophy or…
100%103 patients5/55-star benchmark: 100%
Cataracts: 20/40 or Better Visual Acuity within 90 Days Following Cataract Surgery
Percentage of patients aged 18 years and older with a diagnosis of uncomplicated cataract who had cataract surgery and no significant ocular conditions impacting the visual outcome of surgery and had best-corrected visual acuity of 20/40 or better (distance…
68%226 patients
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%456 patients5/55-star benchmark: 100%
Diabetic Retinopathy: Communication with the Physician Managing Ongoing Diabetes Care
Percentage of patients aged 18 years and older with a diagnosis of diabetic retinopathy who had a dilated macular or fundus exam performed with documented communication to the physician who manages the ongoing care of the patient with diabetes mellitus…
17%23 patients1/55-star benchmark: 100%
Diabetic Retinopathy: Documentation of Presence or Absence of Macular Edema and Level of Severity of Retinopathy
Percentage of patients aged 18 years and older with a diagnosis of diabetic retinopathy who had a dilated macular or fundus exam performed which included documentation of the level of severity of retinopathy and the presence or absence of macular edema during…
90%31 patients4/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
84%3,783 patients3/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
26%76 patients2/55-star benchmark: 97%
Primary Open-Angle Glaucoma (POAG): Optic Nerve Evaluation
Percentage of patients aged 18 years and older with a diagnosis of primary open-angle glaucoma (POAG) who have an optic nerve head evaluation during one or more office visits within 12 months
96%294 patients4/55-star benchmark: 100%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 0% · 1,547 patients
0%1,547 patients5/55-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 3

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

JEROME A. ROBSON M.D.
Anesthesiology
500 COFFEE ROAD, SUITE E
MODESTO, CA 95355
Stanislaus County (209) 521-1209
JEROME A ROBSON M D INC
Anesthesiology
500 COFFEE ROAD, SUITE E
MODESTO, CA 95355
Stanislaus County (209) 521-1209
STEVEN R WUNSCHEL MD INC
Urology
500 COFFEE ROAD, C
MODESTO, CA 95355
Stanislaus County (209) 238-0369

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 James Gammon's NPI number?

The NPI number for James Gammon is 1598800062. It was assigned to this individual provider in the NPPES registry on February 21, 2007. The provider is also known as J. Allen Gammon MD.

Where is James Gammon located?

James Gammon practices at 500 Coffee Road Suite F, Modesto, CA 95355. The listed phone number is (209) 522-7362.

What is James Gammon's specialty?

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

Is James Gammon enrolled in Medicare?

Yes. James Gammon 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 James Gammon was last updated on October 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.