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KAREN A ADLER MD
NPI 1508029182
Psychiatry & Neurology - Psychiatry in Lexington, MA

Active since July 03, 2008Opted out of Medicare · through Dec 12, 2026
229 MASSACHUSETTS AVE STE 5, LEXINGTON, MA 02420(617) 855-8676(800) 868-0296 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 21, 2022, Jun 28, 2017 (2 updates tracked since 2017).

About Karen A Adler Md NPPES

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

KAREN A ADLER MD (NPI 1508029182) is an individual psychiatry provider in Lexington, Massachusetts, licensed in Massachusetts (250244) and active in the NPI registry since July 2008. She has opted out of Medicare through December 12, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1508029182
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameKAREN A ADLERCredential: MD
Location Address229 MASSACHUSETTS AVE STE 5Lexington, MA 02420-4040
Mailing Address229 Massachusetts Ave Ste 5Lexington, MA 02420-4040 · (617) 855-8676 · Fax (800) 868-0296
Phone(617) 855-8676
Fax(800) 868-0296
Sole ProprietorYes
Enumeration DateJuly 3, 2008
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
✔ NPI 1508029182 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MA · 250244
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
229 MASSACHUSETTS AVE STE 5, Lexington, MA 02420
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Karen A Adler Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from December 12, 2022 through December 12, 2026.

Opt-Out Effective DateDecember 12, 2022
Opt-Out In Effect ThroughDecember 12, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02420 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
$189.86 typical visit price
range $63.72 – $189.86
Typical copayment $47.46 (range $15.93 – $47.46)
Most-billed visit code 99205
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.

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 Karen Adler's NPI number?

The NPI number for Karen Adler is 1508029182. It was assigned to this individual provider in the NPPES registry on July 3, 2008.

Where is Karen Adler located?

Karen Adler practices at 229 Massachusetts Ave Ste 5, Lexington, MA 02420. The listed phone number is (617) 855-8676.

What is Karen Adler's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Karen Adler enrolled in Medicare?

No. Karen Adler has opted out of Medicare through December 12, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Karen Adler accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Karen Adler 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 Karen Adler was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.