Kastoori Iyengar, M.D.
With over 34 years in family medicine, Kastoori Iyengar, M.D. is a long-established family medicine physician in Harvard. She has been practicing since 2006 — over 34 years. CMS Medicare data shows her patients commonly have high cholesterol, hypertension, and arthritis.
At a glance
- Prescribes opioids less than 41% of reporting doctors in Massachusetts
- Uses generic medications more than 43% of reporting doctors in Massachusetts
- Virtual visits available — no app or travel required
Older · 1475dNPPES updated 2022-04-25 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine
Contact & Location
Practice Location
198 Ayer Rd, Harvard, MA 01451-1163
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better1.28%
Massachusetts avg: 4 · US avg: 5.1
✓ Higher than most doctors nationally(-3.8 pts)
Typical range among reporting doctors in Massachusetts1.28% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better86.3%
Massachusetts avg: 81.9 · US avg: 82.8
✓ Higher than most doctors nationally(+3.5 pts)
Typical range among reporting doctors in MassachusettsHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
116
Unique beneficiaries
Standard volumePrescription Recipients
256
Patients prescribed
Prescriptions Written
2,110
Total claims
Total Medicare drug cost: $169k
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.
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.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-8%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-13%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-11%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-10%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-12%) — less common here
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.
Board certified · Apr 24, 2022
Self-reported via NPPES
34 years in practice
Senior practitioner
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Taxonomy: 207Q00000X
Mailing address
Po Box 415348, Boston, MA 02241-5348
Differs from practice location
Virtual Family Medicine Care With Kastoori Iyengar
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Kastoori Iyengar for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Harvard 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 Kastoori Iyengar
Dr. Iyengar is listed as active in the NPI registry with telehealth listed in Harvard, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (978) 456-2355.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Kastoori Iyengar
Practice Location
198 Ayer Rd, Harvard, MA 01451-1163
Mailing Address
Po Box 415348, Boston, MA 02241-5348
This is a provider directory. Contact the office directly to schedule appointments.
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