Are you Fred Grunseid, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1687 Ralph Ave, Brooklyn, NY 11236
About Dr. Grunseid
Fred Grunseid, M.D. practices internal medicine in Brooklyn, NY. Fred is a 1984 graduate of Icahn School of Medicine at Mount Sinai. Medicare claims data shows Fred provided 9,433 services to 5,240 patients. The services billed most often include insertion of needle into vein for collection of blood sample, telephone medical discussion with physician, 5-10 minutes, and complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count. The provider's National Provider Identifier (NPI) is 1023036613.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (718) 251-7191
- Email not available
Practice Locations
1687 RALPH AVE
Brooklyn, NY 11236
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
9,433 services · 5,240 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
1,045 | More than most peers in Internal Medicine |
| X-ray of chest, 1 view | Imaging | 71045 |
402 | More often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
724 | More than most peers in Internal Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
173 | More than most peers in Internal Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
86 | More often than most peers in Internal Medicine |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
51 | More often than most peers in Internal Medicine |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
85 | More often than most peers in Internal Medicine |
| Telephone medical discussion with physician, 5-10 minutes | Office visit | 99441 |
1,005 | More than most peers in Internal Medicine |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
928 | More than most peers in Internal Medicine |
| Manual urinalysis test with examination using microscope, non-automated | Lab test | 81000 |
813 | More than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internists in Brooklyn 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Icahn School of Medicine at Mount Sinai 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Icahn School of Medicine at Mount Sinai 7
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in NY who bill this service to Medicare most often.
Common questions
What does Fred Grunseid specialize in?
Fred Grunseid is an internist in Brooklyn, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Fred Grunseid located?
Fred Grunseid is listed at 1687 Ralph Ave, Brooklyn, NY 11236. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Fred Grunseid's phone number?
The number on file is (718) 251-7191. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Fred Grunseid?
Fred Grunseid's National Provider Identifier is 1023036613. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Fred Grunseid train?
Fred Grunseid attended Icahn School of Medicine at Mount Sinai, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Fred Grunseid have?
Fred Grunseid has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Fred Grunseid do most often?
According to Medicare billing data, Fred Grunseid performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as x-ray of chest, 1 view; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Fred Grunseid's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Fred Grunseid. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.