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MARY LOUISE LENAHAN MD
NPI 1144216953
Dermatology - Procedural Dermatology in East Amherst, NY

Active since September 27, 2005PECOS Enrolled
87.72/100
CMS Quality Rating
6507 TRANSIT RD, EAST AMHERST, NY 14051(716) 689-4377(716) 689-4843 Get Directions Write a Review

NPPES record last updated: May 20, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mary Louise Lenahan Md NPPES

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

MARY LOUISE LENAHAN MD (NPI 1144216953) is an individual procedural dermatology provider in East Amherst, New York, licensed in New York (153446-1) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS and is a graduate of Other (1979).

NPPES Registry Identity

NPI1144216953
Entity TypeIndividualFemale
Primary Taxonomy207NS0135X
Provider Legal NameMARY LOUISE LENAHANCredential: MD
Location Address6507 TRANSIT RDEast Amherst, NY 14051-1427
Mailing Address6507 Transit RdEast Amherst, NY 14051-1427 · (716) 689-4377 · Fax (716) 689-4843
Phone(716) 689-4377
Fax(716) 689-4843
Sole ProprietorYes
Medical School CMSOtherGraduated 1979
Enumeration DateSeptember 27, 2005
Last NPPES UpdateMay 20, 2019
✔ NPI 1144216953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatology · Procedural DermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207NS0135X
License✔ Licensed in NY · 153446-1
Definition
Procedural Dermatology, a subspecialty of Dermatology, encompassing a wide variety of surgical procedures and methods to remove or modify skin tissue for health or cosmetic benefit. These methods include scalpel surgery, laser surgery, chemical surgery, cryosurgery (liquid nitrogen), electrosurgery, aspiration surgery, liposuction, injection of filler substances, and Mohs micrographic controlled surgery (a special technique for the removal of growths, especially skin cancers).
6507 TRANSIT RD, East Amherst, NY 14051
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Other Identifiers 3

Other00010102801NY · Univera
Other0301329NY · Iha
Other000500619001NY · Bcbs Of Wny

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Louise Lenahan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4981784709
PECOS Enrollment IDI20080107000584
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 Mary Louise Lenahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lenahan Dermatology PLLC
Same address
Dermatology
6507 TRANSIT RD STE A
East Amherst, NY 14051
  • Reassigned Medicare billing, New York enrollment
  • 3 clinicians in this Medicare group
NPI 1871087221 (716) 689-4377

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 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 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.
229 services174 patients
Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
131 services33 patients
Biopsy of related skin growth, first growth 11102
A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.
129 services97 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.
118 services103 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
93 services73 patients
Destruction of skin growth, 1-14 growths 17110
"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.
92 services80 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14051 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
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$68.57 typical visit price
range $17.54 – $136.14
Typical copayment $17.14 (range $4.38 – $34.03)
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.

87.72/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.44
Improvement Activities40

Other Providers at the Same Location NPPES 10

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

MRS. JENNIFER A MAY PA
Physician Assistant (Surgical)
6507 TRANSIT RD, SUITE A
EAST AMHERST, NY 14051
Erie County (716) 689-4377
VICTORIA A SMITH PA-C
Physician Assistant
6507 TRANSIT RD
EAST AMHERST, NY 14051
Erie County (716) 689-4377
ELIZABETH CALI NP
Nurse Practitioner (Family)
6507 TRANSIT RD, SUITE A
EAST AMHERST, NY 14051
Erie County (716) 689-4377
MARY JO PENIZOTTO, PHD
Clinic/Center (Adult Mental Health)
6507 TRANSIT RD, STE B
EAST AMHERST, NY 14051
Erie County (716) 204-0100
DR. JOSHUA ELLIOT MIRWIS PHD
Psychologist (School)
6507 TRANSIT RD, SUITE B
EAST AMHERST, NY 14051
Erie County (716) 204-2760
ALEXANDRA PAMELA GALVANO PHYSICIAN ASSISTANT
Physician Assistant
6507 TRANSIT RD
EAST AMHERST, NY 14051
Erie County (716) 689-4377
MS. KATIE NICOLE KOCH RPA-C
Physician Assistant
6507 TRANSIT RD
EAST AMHERST, NY 14051
Erie County (716) 689-4377
DR. MARY JO PENIZOTTO PH.D.
Psychologist (Clinical)
6507 TRANSIT RD, SUITE B
EAST AMHERST, NY 14051
Erie County (716) 204-0100

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 Mary Louise Lenahan's NPI number?

The NPI number for Mary Louise Lenahan is 1144216953. It was assigned to this individual provider in the NPPES registry on September 27, 2005.

Where is Mary Louise Lenahan located?

Mary Louise Lenahan practices at 6507 Transit Rd, East Amherst, NY 14051. The listed phone number is (716) 689-4377.

What is Mary Louise Lenahan's specialty?

The primary specialty registered for this NPI is Dermatology, specializing in Procedural Dermatology, with taxonomy code 207NS0135X.

Is Mary Louise Lenahan enrolled in Medicare?

Yes. Mary Louise Lenahan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Louise Lenahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Louise Lenahan reassigns Medicare benefits to Lenahan Dermatology PLLC (East Amherst, NY). 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 Mary Louise Lenahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Louise Lenahan was last updated on May 20, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.