Allison Lloyd Mcdonough, MD

Internal Medicine

Allison Lloyd Mcdonough is an Internal Medicine specialist based in Waltham, MA with over 29 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(781) 487-4040Waltham, MA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Allison Lloyd Mcdonough, MD has practiced internal medicine for 29+ years, working in group practice. Trained at Harvard Medical School (class of 1997), she has been practicing for over 29 years. CMS Medicare data shows her patients commonly have high cholesterol, hypertension, and arthritis.

At a glance

  • Prescribes opioids less than 31% of reporting doctors in Massachusetts
  • Virtual visits available — no app or travel required
1 of 1,755 Internal Medicine providers in MASee all Internal Medicine in Waltham29+ years experienceNPI since 2006

Older · 3973dNPPES updated 2015-07-07 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine

Contact & Location

Practice Location

52 2nd Ave Suite 2000, Waltham, MA 02451-1127

Fax: (781) 487-2870
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively.

Opioid Rx

↓ Lower = better

2.33%

Massachusetts avg: 4 · US avg: 5.1

Higher than most doctors nationally(-2.8 pts)

2.33% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Medicare Patients

173

Unique beneficiaries

Standard volume

Prescription Recipients

236

Patients prescribed

Prescriptions Written

1,846

Total claims

Total Medicare drug cost: $122k

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 High Cholesterol, Hypertension, and Arthritis.

High Cholesterol
Higher than avg (+3%)73%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+3%) — a focus area for this doctor

Hypertension
Lower than avg (-11%)59%

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

US avg: 70.2%

↓ Fewer patients than average (-11%) — less common here

Arthritis
Lower than avg (-9%)40%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-9%) — less common here

Cancer
Higher than avg (+19%)40%

Diseases involving abnormal cell growth with potential to spread to other body parts

US avg: 20.8%

↑ More patients than average (+19%) — a focus area for this doctor

Osteoporosis
Higher than avg (+10%)28%

Weakened bones that are more prone to fractures, common in older adults

US avg: 18.1%

↑ More patients than average (+10%) — a focus area for this doctor

Anxiety Disorders
Lower than avg (-9%)25%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↓ Fewer patients than average (-9%) — less common here

Mood Disorders
25%

Conditions affecting emotional state, including depression and bipolar disorder

Chronic Kidney Disease
Lower than avg (-9%)21%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↓ Fewer patients than average (-9%) — less common here

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 · 1997

    Harvard Medical School

  2. 29 years in practice

    Experienced

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Education & Training

Harvard Medical School (Class of 1997)

Practice Footprint

Mailing address

Po Box 9142 Mass General Physician Organization, Charlestown, MA 02129-9142

Differs from practice location

Virtual Internal Medicine Care With Allison Lloyd Mcdonough

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

Schedule a virtual visit with Allison Lloyd Mcdonough for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Waltham 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 Allison Lloyd Mcdonough

Dr. Mcdonough is listed as active in the NPI registry with telehealth listed in Waltham, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (781) 487-4040.

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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