Fred Grunseid, M.D.
Fred Grunseid is an Internal Medicine specialist based in Brooklyn, NY with over 42 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Fred Grunseid, M.D. has been part of the Brooklyn medical community since 2006 in group practice. A Icahn School of Medicine at Mount Sinai graduate since 1984, he brings 42+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and diabetes.
At a glance
- Prescribes opioids less than 42% of reporting doctors in New York
- Uses generic medications more than 35% of reporting doctors in New York
- Virtual visits available — no app or travel required
Older · 6855dNPPES updated 2007-08-17 · verify NPI on CMS · Verify license at New York State Board for Medicine
Contact & Location
Practice Location
1687 Ralph Ave, Brooklyn, NY 11236-3319
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
MIPS Score
202321.33/100
New York avg: 87 · US avg: 83.6
⚠ Lower than most doctors nationally(-62.3 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better0.28%
New York avg: 3.5 · US avg: 5.1
✓ Higher than most doctors nationally(-4.8 pts)
Typical range among reporting doctors in New York0.28% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better83.1%
New York avg: 82 · US avg: 82.8
✓ Higher than most doctors nationally(+0.3 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
478
Unique beneficiaries
Standard volumePrescription Recipients
659
Patients prescribed
Prescriptions Written
11,255
Total claims
Total Medicare drug cost: $2.11M
Percentile rankings compared against 8,064 reporting peers in New York.
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 Hypertension, High Cholesterol, and Diabetes.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+9%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-7%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-5%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.1k received from industry
59 transactions reported in 2024 ·Moderate tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Fred Grunseid's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1984
Icahn School of Medicine at Mount Sinai
42 years in practice
Senior practitioner
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
Icahn School of Medicine at Mount Sinai (Class of 1984)
Virtual Internal Medicine Care With Fred Grunseid
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Fred Grunseid for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Brooklyn 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 Fred Grunseid
Dr. Grunseid is listed as active in the NPI registry with telehealth listed in Brooklyn, NY. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (718) 251-7191.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Fred Grunseid
Practice Location
1687 Ralph Ave, Brooklyn, NY 11236-3319
Mailing Address
1687 Ralph Ave, Brooklyn, NY 11236-3319
This is a provider directory. Contact the office directly to schedule appointments.
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