Claire Marie Twark, M.D.

Psychiatry Psychiatry & Neurology

Claire Marie Twark is a Psychiatry Psychiatry & Neurology specialist based in Boston, MA with over 13 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(617) 732-6753Boston, MA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Patients across MA can see Claire Marie Twark, M.D. in person in Boston or via virtual visit — no travel required. Trained at University of Colorado School of Medicine, Denver (class of 2013), she has been practicing for over 13 years. Among her Medicare patients, common conditions include depression, anxiety, and mood disorders (per CMS data).

At a glance

  • Uses generic medications more than 49% of reporting doctors in Massachusetts
  • Virtual visits available — no app or travel required
1 of 628 Psychiatry & Neurology providers in MASee all Psychiatry & Neurology in Boston13+ years experienceNPI since 2013

Older · 2867dNPPES updated 2018-07-18 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine

Contact & Location

Practice Location

221 Longwood Ave, Boston, MA 02115

Fax: (617) 975-0828
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.

Generic Rx

↑ Higher = better

87.5%

Massachusetts avg: 81.9 · US avg: 82.8

Higher than most doctors nationally(+4.7 pts)

Typical range among reporting doctors in Massachusetts

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

36

Unique beneficiaries

Boutique practice

Prescription Recipients

42

Patients prescribed

Prescriptions Written

335

Total claims

Total Medicare drug cost: $54k

Percentile rankings compared against 1,606 reporting peers in Massachusetts.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Depression, Anxiety Disorders, and Mood Disorders.

Depression
Higher than avg (+43%)75%

A mood disorder causing persistent sadness and loss of interest in activities

US avg: 31.8%

↑ More patients than average (+43%) — a focus area for this doctor

Anxiety Disorders
Higher than avg (+41%)75%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↑ More patients than average (+41%) — a focus area for this doctor

Mood Disorders
75%

Conditions affecting emotional state, including depression and bipolar disorder

Substance Use Disorders
75%

Problematic patterns of drug or alcohol use leading to health issues

Hypertension
Lower than avg (-3%)67%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↓ Fewer patients than average (-3%) — less common here

Arthritis
Lower than avg (-2%)47%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-2%) — less common here

High Cholesterol
Lower than avg (-26%)44%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↓ Fewer patients than average (-26%) — less common here

Tobacco Use Disorder
39%

Nicotine dependence and tobacco-related health complications

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2013

    University of Colorado School of Medicine, Denver

  2. 13 years in practice

    Established

Psychiatry & NeurologyAllopathic & Osteopathic Physicians

Psychiatrists are physicians who diagnose and treat mental health conditions including depression, anxiety disorders, bipolar disorder, schizophrenia, PTSD, and substance use disorders. They can prescribe medications and provide psychotherapy.

Taxonomy: 2084P0800X

Education & Training

University of Colorado School of Medicine, Denver (Class of 2013)

Practice Footprint

Mailing address

375 Boylston St, Brookline, MA 02445-6007

Differs from practice location

Virtual Psychiatry & Neurology Care With Claire Marie Twark

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Claire Marie Twark for depression management, anxiety counseling, mood disorder follow-ups — no travel to Boston required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Claire Marie Twark

Dr. Twark is listed as active in the NPI registry with telehealth listed in Boston, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (617) 732-6753.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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