Provider Profile
Cassidy Grieco
Unclaimed ProfileAbout Cassidy Grieco
Cassidy Grieco is a physician assistant based in Boston, MA. Cassidy is a 2022 graduate of Tufts University School of Medicine. Cassidy is also listed as specializing in student in an organized health care education program. Medicare claims data shows Cassidy provided 916 services to 810 patients. The services billed most often include insertion of needle into vein for collection of blood sample, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (617) 421-1000
- Email not available
Practice Locations
133 BROOKLINE AVE
Boston, MA 02215
Procedures Most Often Billed to Medicare
916 services · 810 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
110 | More often than most peers in Physician Assistant |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
29 | More often than most peers in Physician Assistant |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
29 | More often than most peers in Physician Assistant |
| Influenza vaccine, inactivated | Treatment | 90653 |
14 | Less often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
89 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
75 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
70 | As often as other peers in Physician Assistant |
| Hemoglobin a1c level | Lab test | 83036 |
54 | More often than most peers in Physician Assistant |
| Detection test by immunoassay with direct visual observation for influenza virus | Lab test | 87804 |
50 | More often than most peers in Physician Assistant |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
47 | More often than most peers in Physician Assistant |
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 physician assistants at this location 1
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 physician assistants in Boston 8
Same specialty, same city.
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2022 at Tufts University School of Medicine 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 MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Cassidy Grieco?
Cassidy Grieco is a physician assistant in Boston, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Cassidy Grieco's address?
Cassidy Grieco is listed at 133 Brookline Ave, Boston, MA 02215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Cassidy Grieco?
The number on file is (617) 421-1000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Cassidy Grieco?
Cassidy Grieco's National Provider Identifier is 1306428941. 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 Cassidy Grieco train?
Cassidy Grieco attended Tufts University School of Medicine, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Cassidy Grieco have?
Cassidy Grieco has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
What procedures does Cassidy Grieco perform?
According to Medicare billing data, Cassidy Grieco performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as sarscv2 vac 30mcg trs-suc im and admn sarscov2 vacc 1 dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Cassidy Grieco's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Cassidy Grieco. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.