DAVID G. GROSS D.O.
NPI 1346373313
Ophthalmology in Merrillville, IN

Q: What is David Gross's NPI number?

The NPI number for David Gross is 1346373313. It was assigned to this individual provider in the NPPES registry on March 13, 2007.

Q: What is David Gross'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 David Gross was last updated on March 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 March 13, 2007PECOS EnrolledAccepts Medicare Assignment

303 W 89TH AVE, SUITE E4, MERRILLVILLE, IN 46410(219) 769-8989(219) 756-6389 Get Directions Write a Review

NPPES record last updated: March 4, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About David G. Gross D.o. NPPES

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

DAVID G. GROSS D.O. (NPI 1346373313) is an individual ophthalmology provider in Merrillville, Indiana, licensed in Indiana (02001570A) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with St Mary Medical Center Inc, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1346373313

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDAVID G. GROSSCredential: D.O.

Location Address303 W 89TH AVE, SUITE E4Merrillville, IN 46410-6294

Mailing Address303 W 89th Ave, Suite E4Merrillville, IN 46410-6294 · (219) 769-8989 · Fax (219) 756-6389

Phone(219) 769-8989

Fax(219) 756-6389

Sole ProprietorNo

Medical School CMSOtherGraduated 1991

Enumeration DateMarch 13, 2007

Last NPPES UpdateMarch 4, 2021

NPPES CertifiedMarch 4, 2021

✔ NPI 1346373313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in IN · 02001570A

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.

303 W 89TH AVE, Merrillville, IN 46410

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Other Identifiers 2

Medicaid100475590IN

Other000000092837IN · Anthem

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

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

David G. Gross D.o. 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 ID6507830502

PECOS Enrollment IDI20100708000196

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 David Gross reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

David G Gross Do, PC

Same address

Optometrist

303 W 89TH AVE, SUITE E4
Merrillville, IN 46410

Reassigned Medicare billing, Indiana enrollment
2 clinicians in this Medicare group

NPI 1073646089 (219) 769-8989

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.

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.

1,468 services823 patients

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.

704 services268 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.

533 services418 patients

Insertion of drug delivery implant into tear duct of eye 68841

This procedure involves placing a small implant into your tear duct. The implant slowly releases medication to your eye, helping manage conditions like dry eyes or glaucoma. It's a simple, quick procedure typically performed under local anesthesia.

435 services243 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.

428 services399 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.

418 services187 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.

326 services290 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).

322 services317 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.

261 services252 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.

220 services220 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.

198 services196 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.

186 services173 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.

128 services75 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.

123 services96 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.

112 services112 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.

41 services41 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.

32 services17 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.

25 services25 patients

Hospital Affiliations CMS Care Compare

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

St Mary Medical Center Inc

Acute Care Hospitals · Hobart, IN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150034

Location1500 S Lake Park AveHobart, IN 46342 · Lake County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46410 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

$122.49 typical visit price

range $53.07 – $161.76

Typical copayment $30.62 (range $13.26 – $40.44)

Most-billed visit code 99204

Established Patient

$66.48 typical visit price

range $16.93 – $132.22

Typical copayment $16.62 (range $4.23 – $33.05)

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 14

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

DAVID G GROSS DO, PC

Optometrist

303 W 89TH AVE, SUITE E4
MERRILLVILLE, IN 46410

Lake County (219) 769-8989

PODIATRIC MEDICAL ASSOCIATES PC

Podiatrist

303 W 89TH AVE, SUITE E-1
MERRILLVILLE, IN 46410

Lake County (219) 736-8915

JAMIE TAFFORA OD

Optometrist

303 W 89TH AVE
MERRILLVILLE, IN 46410

Lake County (219) 769-8989

DR. JESSE MURPHY DPM

Podiatrist (Foot & Ankle Surgery)

303 W 89TH AVE, SUITE E-1
MERRILLVILLE, IN 46410

Lake County (219) 736-8915

JEFFREY LYNN NELSON MD

Ophthalmology

303 W 89TH AVE, SUITE E-4
MERRILLVILLE, IN 46410

Lake County (219) 769-8989

DR. ALISON JEAN BYRNE O.D.

Optometrist

303 W 89TH AVE, SUITE E4
MERRILLVILLE, IN 46410

Lake County (219) 769-8989

DAVID G. GROSS, DO, PC

Eyewear Supplier

303 W 89TH AVE, SUITE E4
MERRILLVILLE, IN 46410

Lake County (219) 769-8989

DR. JONATHAN JAMES TRUCHAN DPM

Podiatrist

303 W 89TH AVE, STE E1
MERRILLVILLE, IN 46410

Lake County (219) 736-8915

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 David Gross's NPI number?

The NPI number for David Gross is 1346373313. It was assigned to this individual provider in the NPPES registry on March 13, 2007.

Where is David Gross located?

David Gross practices at 303 W 89th Ave Suite E4, Merrillville, IN 46410. The listed phone number is (219) 769-8989.

What is David Gross's specialty?

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

Is David Gross enrolled in Medicare?

Yes. David Gross 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 David Gross's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Gross reassigns Medicare benefits to David G Gross Do, PC (Merrillville, IN). 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 David Gross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does David Gross accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and UnitedHealthcare list David Gross 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 David Gross affiliated with any hospitals?

According to CMS data, David Gross is affiliated with St Mary Medical Center Inc.

When was this NPI record last updated?

The NPPES record for David Gross was last updated on March 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.