1. Home
  2. Directory
  3. Maryland
  4. Monkton
  5. Optometrist
  6. NPI Profile

DR. MICHAEL A SLESS O.D.
NPI 1801839709
Optometrist in Monkton, MD

Active since June 14, 2006PECOS EnrolledAccepts Medicare Assignment
0/100
CMS Quality Rating
16940 YORK RD, SUITE 200, MONKTON, MD 21111(410) 343-2409(410) 343-2410 Get Directions Write a Review

NPPES record last updated: February 1, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Michael A Sless O.d. NPPES

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

DR. MICHAEL A SLESS O.D. (NPI 1801839709) is an individual optometrist in Monkton, Maryland, licensed in Maryland (TA0896) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1984).

NPPES Registry Identity

NPI1801839709
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. MICHAEL A SLESSCredential: O.D.
Location Address16940 YORK RD, SUITE 200Monkton, MD 21111-1095
Mailing Address16940 York Rd, Suite 200Monkton, MD 21111-1095 · (410) 343-2409 · Fax (410) 343-2410
Phone(410) 343-2409
Fax(410) 343-2410
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateJune 14, 2006
Last NPPES UpdateFebruary 1, 2008
✔ NPI 1801839709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in MD · TA0896
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
16940 YORK RD, Monkton, MD 21111
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINT77369MD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas 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

Dr. Michael A Sless O.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 ID3072505940
PECOS Enrollment IDI20051109000122
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 8

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.

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.
491 services478 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.
397 services394 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.
131 services108 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.
91 services91 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.
40 services21 patients
New patient problem focused exam of visual system 92002
A new patient problem-focused exam of the visual system is a basic evaluation of your eyes and vision. It includes checking your eye movements, visual acuity, and general eye health. It helps detect any potential issues early for timely treatment.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21111 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
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.

0/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0

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 Sless's NPI number?

The NPI number for Michael Sless is 1801839709. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Where is Michael Sless located?

Michael Sless practices at 16940 York Rd Suite 200, Monkton, MD 21111. The listed phone number is (410) 343-2409.

What is Michael Sless's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Michael Sless enrolled in Medicare?

Yes. Michael Sless 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 Michael Sless accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Michael Sless 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.

When was this NPI record last updated?

The NPPES record for Michael Sless was last updated on February 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.