EILEEN M DEIGNAN MD
NPI 1497723852
Dermatology in Concord, MA

Q: What is Eileen Deignan's NPI number?

The NPI number for Eileen Deignan is 1497723852. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Q: What is Eileen Deignan's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Q: When was this NPI record last updated?

The NPPES record for Eileen Deignan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 10, 2006PECOS EnrolledAccepts Medicare Assignment

290 BAKER AVE, CONCORD, MA 01742(978) 369-9023(978) 371-9675 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Eileen M Deignan Md NPPES

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

EILEEN M DEIGNAN MD (NPI 1497723852) is an individual dermatology provider in Concord, Massachusetts, licensed in Massachusetts (159436) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and is a graduate of Yale University School Of Medicine (1995).

NPPES Registry Identity

NPI1497723852

Entity TypeIndividualFemale

Primary Taxonomy207N00000X

Provider Legal NameEILEEN M DEIGNANCredential: MD

Location Address290 BAKER AVEConcord, MA 01742-2189

Mailing Address290 Baker AveConcord, MA 01742-2189 · (978) 369-9023 · Fax (978) 371-9675

Phone(978) 369-9023

Fax(978) 371-9675

Sole ProprietorNo

Medical School CMSYale University School Of MedicineGraduated 1995

Enumeration DateMarch 10, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1497723852 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians

Taxonomy Code207N00000X

License✔ Licensed in MA · 159436

Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

290 BAKER AVE, Concord, MA 01742

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Other Identifiers 1

Medicaid3203247MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro 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

Eileen M Deignan 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 ID1658304290

PECOS Enrollment IDI20100811000315

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

Dermatology Associates Of Concord Inc

Same address

Dermatology

290 BAKER AVE
Concord, MA 01742

Reassigned Medicare billing, Massachusetts enrollment
15 clinicians in this Medicare group

NPI 1508964230 (978) 369-9023

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 12

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.

900 services686 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.

520 services159 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.

355 services265 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.

232 services195 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.

191 services139 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.

124 services105 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

110 services99 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

45 services35 patients

Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm 17262

This procedure involves removing a cancerous skin growth on the trunk, arms, or legs that is between 1.1 and 2.0 cm in size. The growth is destroyed using methods like surgery, laser, or freezing, aiming to eliminate cancer and prevent its spread.

42 services33 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

30 services30 patients

Therapy procedure using ultraviolet radiation with tar or petroleum jelly application 96910

This therapy involves applying tar or petroleum jelly on the skin, followed by exposure to ultraviolet radiation. It helps in treating skin conditions by slowing cell growth and reducing inflammation. It's a safe, controlled process, often used for conditions like psoriasis.

25 services16 patients

Biopsy of ear 69100

A biopsy of the ear is a medical procedure where a small sample of tissue is taken from your ear for examination. This helps doctors diagnose any abnormalities or diseases. It's a simple process, usually done under local anesthesia, and has minimal risks.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Mount Auburn Hospital

Acute Care Hospitals · Cambridge, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220002

Location330 Mount Auburn StreetCambridge, MA 02138 · Middlesex County

Emergency services Birthing friendly

Emerson Hospital -

Acute Care Hospitals · W Concord, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220084

Location133 Old Road To 9 Acre CornerW Concord, MA 01742 · Middlesex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01742 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

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

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 20

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

DR. TERRY P HADLEY M.D.

Dermatology

290 BAKER AVE
CONCORD, MA 01742

Middlesex County (978) 369-9023

CONCORD-CARLISLE DENTAL ASSOCIATES, PC

Dentist (General Practice)

290 BAKER AVE, SUITE 201 SOUTH
CONCORD, MA 01742

Middlesex County (978) 369-3088

CONCORDDENTAL IMPLANTS &PERIODONTICS

Dentist (Periodontics)

290 BAKER AVE, S205
CONCORD, MA 01742

Middlesex County (978) 369-4611

PHYSICAL THERAPY ASSOC OF CONCORD

Physical Therapist

290 BAKER AVE, STE 111
CONCORD, MA 01742

Middlesex County (978) 369-0730

MARK Y WANG DMD PC

Dentist (General Practice)

290 BAKER AVE, SUITE 104
CONCORD, MA 01742

Middlesex County (978) 369-6611

DR. NORMAN LEON GOLDBERG DMD

Dentist (Pediatric Dentistry)

290 BAKER AVE
CONCORD, MA 01742

Middlesex County (978) 369-7771

MATTHEW T ZIPOLI MD

Dermatology (MOHS-Micrographic Surgery)

290 BAKER AVE
CONCORD, MA 01742

Middlesex County (978) 369-9023

CONCORD ORTHOPEDICS, INC

Neuromusculoskeletal Medicine, Sports Medicine

290 BAKER AVE
CONCORD, MA 01742

Middlesex County (978) 369-1337

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 Eileen Deignan's NPI number?

The NPI number for Eileen Deignan is 1497723852. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Where is Eileen Deignan located?

Eileen Deignan practices at 290 Baker Ave, Concord, MA 01742. The listed phone number is (978) 369-9023.

What is Eileen Deignan's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Eileen Deignan enrolled in Medicare?

Yes. Eileen Deignan 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 Eileen Deignan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eileen Deignan reassigns Medicare benefits to Dermatology Associates Of Concord Inc (Concord, MA). 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 Eileen Deignan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eileen Deignan accept?

Health plans from Taro Health list Eileen Deignan 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 Eileen Deignan affiliated with any hospitals?

According to CMS data, Eileen Deignan is affiliated with Mount Auburn Hospital and Emerson Hospital -.

When was this NPI record last updated?

The NPPES record for Eileen Deignan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.