DR. MICHAEL HENNESSEY M.D.
NPI 1912994393
Ophthalmology in Elmwood Park, IL

Q: What is Michael Hennessey's NPI number?

The NPI number for Michael Hennessey is 1912994393. It was assigned to this individual provider in the NPPES registry on September 30, 2005.

Q: What is Michael Hennessey'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 Michael Hennessey was last updated on April 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 September 30, 2005PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

7638 W NORTH AVE, ELMWOOD PARK, IL 60707(708) 452-4257(708) 452-4283 Get Directions Write a Review

NPPES record last updated: April 5, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Michael Hennessey M.d. NPPES

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

DR. MICHAEL HENNESSEY M.D. (NPI 1912994393) is an individual ophthalmology provider in Elmwood Park, Illinois, licensed in Illinois (036090346) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Loyola Gottlieb Memorial Hospital, and is a graduate of University Of Michigan Medical School (1991).

NPPES Registry Identity

NPI1912994393

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. MICHAEL HENNESSEYCredential: M.D.

Location Address7638 W NORTH AVEElmwood Park, IL 60707-4157

Mailing Address7638 W North AveElmwood Park, IL 60707-4157 · (708) 452-4257 · Fax (708) 452-4283

Phone(708) 452-4257

Fax(708) 452-4283

Sole ProprietorYes

Medical School CMSUniversity Of Michigan Medical SchoolGraduated 1991

Enumeration DateSeptember 30, 2005

Last NPPES UpdateApril 5, 2023

NPPES CertifiedApril 5, 2023

✔ NPI 1912994393 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in IL · 036090346

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.

7638 W NORTH AVE, Elmwood Park, IL 60707

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.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

Dr. Michael Hennessey 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 ID4688587900

PECOS Enrollment IDI20101015000410

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 Reassignments

Medicare enrollment records show Michael Hennessey reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Oak Park Eye Center S.C.

Same address

Ophthalmology

7638 W NORTH AVE
Elmwood Park, IL 60707

Reassigned Medicare billing, Illinois enrollment

NPI 1386736650 (708) 452-4257

University Ophthalmology Associates, Ltd

8.0 mi

Ophthalmology

1725 W HARRISON ST, SUITE 918
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
14 clinicians in this Medicare group

NPI 1689726903 (312) 942-2734

Eye Center Physicians, Ltd.

8.0 mi

Ophthalmology

1725 W HARRISON ST, SUITE 906
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
52 clinicians in this Medicare group

NPI 1992715650 (312) 942-5315

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 15

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.

870 services705 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).

480 services382 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.

341 services332 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.

339 services199 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.

238 services235 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.

167 services142 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.

128 services128 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.

87 services46 patients

Probing of nasal tear duct 68840

Probing of the nasal tear duct is a procedure to treat blocked tear ducts. A thin, flexible instrument is gently inserted into the tear duct to clear any obstruction, allowing tears to drain normally again. This procedure is typically quick and can help to alleviate symptoms like excessive tearing or infection.

86 services64 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.

80 services58 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.

80 services80 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.

58 services52 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.

55 services54 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.

21 services20 patients

Exam to measure eye deviation and range of motion 92060

This is an eye exam that checks for any misalignment in your eyes, also known as deviation. It also assesses the movement range of your eyes. The procedure is painless and helps in detecting conditions like strabismus or other vision issues.

16 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Loyola Gottlieb Memorial Hospital

Acute Care Hospitals · Melrose Park, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140008

Location701 West North AveMelrose Park, IL 60160 · Cook County

Emergency services

Elmhurst Memorial Hospital

Acute Care Hospitals · Elmhurst, IL

4/5 CMS rating

OwnershipProprietary

CMS Certification Number140200

Location155 East Brush Hill RoadElmhurst, IL 60126 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60707 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

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

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

Individually scored

Quality

100

Improvement Activities

Cost

100

Reported Quality Measures

Complications After Cataract Surgery

Lower rates are better for this measure.

0%226 patients

Diabetes: Eye Exam

100%1,024 patients5/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

100%5,270 patients5/55-star benchmark: 100%

Glaucoma Intraocular Pressure Reduction

90%616 patients

Overuse of Imaging for the Evaluation of Primary Headache

Lower rates are better for this measure.

0%39 patients

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 2,217 patients

Patients totalRate: 0% · 2,217 patients

0%2,217 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.

MANUEL D SANTIAGO MD

Ophthalmology

7638 W NORTH AVE
ELMWOOD PARK, IL 60707

Cook County (708) 452-4257

OAK PARK EYE CENTER S.C.

Ophthalmology

7638 W NORTH AVE
ELMWOOD PARK, IL 60707

Cook County (708) 452-4257

A. GWENDOLYN NOBLE M.D., PH.D.

Ophthalmology

7638 W NORTH AVE
ELMWOOD PARK, IL 60707

Cook County (708) 452-4257

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 Michael Hennessey's NPI number?

The NPI number for Michael Hennessey is 1912994393. It was assigned to this individual provider in the NPPES registry on September 30, 2005.

Where is Michael Hennessey located?

Michael Hennessey practices at 7638 W North Ave, Elmwood Park, IL 60707. The listed phone number is (708) 452-4257.

What is Michael Hennessey's specialty?

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

Is Michael Hennessey enrolled in Medicare?

Yes. Michael Hennessey 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 organizations bill Medicare for Michael Hennessey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Hennessey reassigns Medicare benefits to 3 organizations: Oak Park Eye Center S.C. (Elmwood Park, IL), University Ophthalmology Associates, Ltd (Chicago, IL) and Eye Center Physicians, Ltd. (Chicago, IL). Each 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 Michael Hennessey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Hennessey accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Michael Hennessey 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 Michael Hennessey affiliated with any hospitals?

According to CMS data, Michael Hennessey is affiliated with Loyola Gottlieb Memorial Hospital and Elmhurst Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Michael Hennessey was last updated on April 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.