MARK D LITCHMAN MD
NPI 1447341243
Allergy & Immunology in Norwalk, CT

Q: What is Mark Litchman's NPI number?

The NPI number for Mark Litchman is 1447341243. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Q: What is Mark Litchman's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Litchman was last updated on October 8, 2020. 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 September 27, 2006PECOS EnrolledAccepts Medicare Assignment

80.3/100

CMS Quality Rating

148 EAST AVENUE, SUITE 3G, NORWALK, CT 06851(203) 838-4034(203) 853-6361 Get Directions Write a Review

NPPES record last updated: October 8, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Mark D Litchman Md NPPES

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

MARK D LITCHMAN MD (NPI 1447341243) is an individual allergy & immunology provider in Norwalk, Connecticut, licensed in Connecticut (027828) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (1984).

NPPES Registry Identity

NPI1447341243

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameMARK D LITCHMANCredential: MD

Location Address148 EAST AVENUE, SUITE 3GNorwalk, CT 06851

Mailing Address148 East Avenue, Suite 3gNorwalk, CT 06851 · (203) 838-4034 · Fax (203) 853-6361

Phone(203) 838-4034

Fax(203) 853-6361

Sole ProprietorNo

Medical School CMSRush Medical College Of Rush UniversityGraduated 1984

Enumeration DateSeptember 27, 2006

Last NPPES UpdateOctober 8, 2020

NPPES CertifiedOctober 8, 2020

✔ NPI 1447341243 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in CT · 027828

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

148 EAST AVENUE, Norwalk, CT 06851

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Other Identifiers 1

Medicaid001278284CT

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

Mark D Litchman Md 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 ID4082501721

PECOS Enrollment IDI20040304000259

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 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.

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

2,400 services80 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

1,421 services107 patients

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

1,016 services32 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

298 services18 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.

60 services53 patients

Professional service for single injection of allergen 95115

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

57 services14 patients

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.

80.3/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

74.06

Promoting Interoperability

Improvement Activities

Cost

71.13

Referred Medical Equipment & Supplies CMS DME claims

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

Injection, immune globulin, intravenous, non-lyophilized (e.g., liquid), not otherwise specified, 500 mg J1599

Treatment-Injections and Infusions (nononcologic) · category RI008N

1 supplier13 claims520 services$54.89 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 8

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

LIBIA RUEDA-MATIK MD

Pediatrics

148 EAST AVENUE, SUITE #1L
NORWALK, CT 06851

Western Connecticut Planning Region (203) 854-6993

FAIRFIELD COUNTY ALLERGY ASTHMA & IMMUNOLOGY ASSOCIATES PC

Allergy & Immunology

148 EAST AVENUE, SUITE 3G
NORWALK, CT 06851

Western Connecticut Planning Region (203) 838-4034

CLIFFORD W FELLER MD

Obstetrics & Gynecology

148 EAST AVENUE, STE 1E
NORWALK, CT 06851

Western Connecticut Planning Region (203) 838-9898

FAIRFIELD COUNTY BARIATICS AND SURGICAL SPECIALISTS PC

Surgery

148 EAST AVENUE, SUITE 3A
NORWALK, CT 06851

Western Connecticut Planning Region (203) 899-0744

AUDREY C BREGANTE APRN RN NP

Nurse Practitioner (Pediatrics)

148 EAST AVENUE, SUITE 3G
NORWALK, CT 06851

Western Connecticut Planning Region (203) 838-4034

JOSEPH F SPROVIERO MD PHD

Allergy & Immunology

148 EAST AVENUE, SUITE 3G
NORWALK, CT 06851

Western Connecticut Planning Region (203) 838-4034

DR. AYMERIC E. LOUIT MD

Allergy & Immunology

148 EAST AVENUE, SUITE 3G
NORWALK, CT 06851

Western Connecticut Planning Region (203) 838-4034

JESSE S WEXLER MD

Radiology (Diagnostic Radiology)

148 EAST AVENUE
NORWALK, CT 06851

Western Connecticut Planning Region (203) 852-9913

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 Mark Litchman's NPI number?

The NPI number for Mark Litchman is 1447341243. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Where is Mark Litchman located?

Mark Litchman practices at 148 East Avenue Suite 3G, Norwalk, CT 06851. The listed phone number is (203) 838-4034.

What is Mark Litchman's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Mark Litchman enrolled in Medicare?

Yes. Mark Litchman 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.

When was this NPI record last updated?

The NPPES record for Mark Litchman was last updated on October 8, 2020. 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.