BENJAMIN L MASON M.D..
NPI 1457301442
Ophthalmology in Waterloo, IA

Q: What is Benjamin Mason's NPI number?

The NPI number for Benjamin Mason is 1457301442. It was assigned to this individual provider in the NPPES registry on May 11, 2006.

Q: What is Benjamin Mason's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Benjamin Mason was last updated on February 15, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 May 11, 2006PECOS EnrolledAccepts Medicare Assignment

999 HOME PLZ, WATERLOO, IA 50701(319) 287-5890(319) 287-5079 Get Directions Write a Review

NPPES record last updated: February 15, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Benjamin L Mason M.d.. NPPES

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

BENJAMIN L MASON M.D.. (NPI 1457301442) is an individual ophthalmology provider in Waterloo, Iowa, licensed in Iowa (36579) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Sartori Memorial Hospital, Inc, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2001).

NPPES Registry Identity

NPI1457301442

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameBENJAMIN L MASONCredential: M.D..

Location Address999 HOME PLZWaterloo, IA 50701-4822

Mailing Address309 E Church StMarshalltown, IA 50158-2946 · (641) 754-6200 · Fax (641) 752-7420

Phone(319) 287-5890

Fax(319) 287-5079

Sole ProprietorNo

Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2001

Enumeration DateMay 11, 2006

Last NPPES UpdateFebruary 15, 2018

✔ NPI 1457301442 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in IA · 36579

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.

Also ListedOphthalmology · Glaucoma SpecialistTaxonomy 207WX0009X · License 36579 (IA)

999 HOME PLZ, Waterloo, IA 50701

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Other Identifiers 2

OtherP00397399IA · Railroad Medicare

Medicaid3497792IA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

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

Benjamin L Mason 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 ID8325079247

PECOS Enrollment IDI20061113000095

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 19

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.

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

1,204 services423 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.

1,104 services359 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.

800 services795 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).

597 services577 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

502 services496 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.

467 services467 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.

375 services290 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

230 services84 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.

223 services217 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

191 services189 patients

Exam of the internal drainage system of eye 92020

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

129 services118 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.

112 services111 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

107 services96 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

67 services67 patients

Laser repair to improve eye fluid flow 65855

Laser repair to improve eye fluid flow is a procedure aimed at treating glaucoma. A laser is used to create a small hole in the eye's drainage system, allowing fluid to flow out more easily. This helps to lower the pressure inside the eye, reducing the risk of vision loss.

62 services48 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.

56 services53 patients

Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye 66991

This is a two-part eye procedure. First, a cloudy lens (cataract) is removed from its outer layer and replaced with an artificial lens to improve vision. Second, a drainage device is inserted into the front part of the eye to manage fluid levels, preventing pressure build-up.

34 services12 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.

16 services16 patients

Ct scan of cornea 92025

A CT scan of the cornea is a non-invasive imaging test that uses X-rays to capture detailed pictures of your eye's cornea. It helps in diagnosing diseases or damage, planning for surgery, or evaluating the results of a treatment. It's a safe and painless procedure.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Sartori Memorial Hospital, Inc

Acute Care Hospitals · Cedar Falls, IA

OwnershipVoluntary non-profit - Church

CMS Certification Number160040

Location515 College StreetCedar Falls, IA 50613 · Black Hawk County

Emergency services

Grundy County Memorial Hospital

Critical Access Hospitals · Grundy Center, IA

OwnershipVoluntary non-profit - Other

CMS Certification Number161303

Location201 East J AvenueGrundy Center, IA 50638 · Grundy County

Emergency services

Gundersen Palmer Lutheran Hospital And Clinics

Critical Access Hospitals · West Union, IA

OwnershipVoluntary non-profit - Private

CMS Certification Number161316

Location112 Jefferson StreetWest Union, IA 52175 · Fayette County

Emergency services

Mercy Medical Center-New Hampton

Critical Access Hospitals · New Hampton, IA

OwnershipVoluntary non-profit - Church

CMS Certification Number161331

Location308 North Maple AvenueNew Hampton, IA 50659 · Chickasaw County

Emergency services

Waverly Health Center

Critical Access Hospitals · Waverly, IA

OwnershipGovernment - Local

CMS Certification Number161339

Location312 9th Street SWWaverly, IA 50677 · Bremer County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50701 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

$122.23 typical visit price

range $52.96 – $161.40

Typical copayment $30.55 (range $13.24 – $40.35)

Most-billed visit code 99204

Established Patient

$66.36 typical visit price

range $16.91 – $131.98

Typical copayment $16.59 (range $4.22 – $32.99)

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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Frames, purchases V2020

Other-Vision, Hearing, and Speech Services · category OC000N

8 suppliers26 claims26 services$47.24 avg. paid by Medicare

Spherocylinder, bifocal, plano to plus or minus 4.00d sphere, .12 to 2.00d cylinder, per lens V2203

Other-Vision, Hearing, and Speech Services · category OC000N

6 suppliers15 claims27 services$32.86 avg. paid by Medicare

Spherocylinder, trifocal, plano to plus or minus 4.00d sphere, .12-2.00d cylinder, per lens V2303

Other-Vision, Hearing, and Speech Services · category OC000N

7 suppliers21 claims40 services$49.50 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

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

IOWA EYECARE ASSOCIATES PC

Optometrist

999 HOME PLZ, SUITE 100
WATERLOO, IA 50701

Black Hawk County (319) 236-0815

DR. STEVEN D BOEKE O.D.

Optometrist

999 HOME PLZ
WATERLOO, IA 50701

Black Hawk County (319) 236-0815

JERRY L STAHL O.D.

Optometrist

999 HOME PLZ, SUITE 100
WATERLOO, IA 50701

Black Hawk County (319) 236-0815

DENNIS D TIESZEN OD

Optometrist

999 HOME PLZ, SUITE 100
WATERLOO, IA 50701

Black Hawk County (319) 236-0815

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 Benjamin Mason's NPI number?

The NPI number for Benjamin Mason is 1457301442. It was assigned to this individual provider in the NPPES registry on May 11, 2006.

Where is Benjamin Mason located?

Benjamin Mason practices at 999 Home Plz, Waterloo, IA 50701. The listed phone number is (319) 287-5890.

What is Benjamin Mason's specialty?

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

Is Benjamin Mason enrolled in Medicare?

Yes. Benjamin Mason 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.

What insurance does Benjamin Mason accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 5 other insurers list Benjamin Mason as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Benjamin Mason affiliated with any hospitals?

According to CMS data, Benjamin Mason is affiliated with Sartori Memorial Hospital, Inc, Grundy County Memorial Hospital, Gundersen Palmer Lutheran Hospital And Clinics, Mercy Medical Center-New Hampton and Waverly Health Center.

When was this NPI record last updated?

The NPPES record for Benjamin Mason was last updated on February 15, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.