Physician Profile
Unclaimed ProfileAbout GRAND
Mark Alan Grand, MD practices internal medicine in Brooklyn, NY. Mark is a 1978 graduate of New York Medical College. Mark is also listed as specializing in hematology and medical oncology. According to Medicare claims data, Mark cared for 801 Medicare patients across 2,549 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (718) 858-6300
- Email not available
Practice Locations
447 ATLANTIC AVE
Brooklyn, NY 11217
Procedures Most Often Billed to Medicare
2,549 services · 801 patients · 22 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
258 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
54 |
| Injection of additional new drug or substance into vein | Treatment | 96375 |
23 |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
20 |
| Injection of drug or substance into vein | Treatment | 96374 |
14 |
| Flow cytometry technique for dna or cell analysis, each additional marker | Lab test | 88185 |
745 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
246 |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
174 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
114 |
| Iron level | Lab test | 83540 |
104 |
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 internal medicines at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other internal medicines in Brooklyn 8
Same specialty, same city.
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
Class of 1978 at New York Medical College 8
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 is Dr. Grand's specialty?
Dr. Grand is an internal medicine in Brooklyn, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Grand?
Dr. Grand is listed at 447 ATLANTIC AVE, Brooklyn, NY 11217. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Grand?
The number on file is (718) 858-6300. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Grand's NPI number?
Dr. Grand's National Provider Identifier is 1487696514. 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
What is Dr. Grand's medical education?
Dr. Grand attended New York Medical College, graduating in 1978. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Grand been practicing?
Dr. Grand has 48 years experience. Calculated from a graduation year of 1978, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Grand known for?
According to Medicare billing data, Dr. Grand performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as injection of drug or substance under skin or into muscle and injection of additional new drug or substance into vein, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Grand confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grand. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.