Provider Profile
Diane Grassi, NP
Unclaimed ProfileAbout Diane Grassi
Listed in the NPI registry as a nurse practitioner — adult health, Diane Grassi, NP practices in Smithtown, NY. Diane graduated from State University of New York at Stony Brook, School of Medicine in 2016. Diane is also listed as specializing in nurse practitioner — gerontology. According to Medicare claims data, Diane cared for 143 Medicare patients across 339 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes.
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
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
- (631) 656-0874
- Email not available
Practice Locations
285 E MAIN ST
Smithtown, NY 11787
Conditions and Services Within This Provider's Scope
Within Nurse Practitioner - Adult Health 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
- Common cold
- Diabetes
- Flu
- High blood pressure
- Sinus infection
- UTI
Allergies
- Seasonal allergies
Allergy & skin
- Hives
- Poison Ivy
Blood disorders
- Iron-deficiency anemia
Bone health
- Osteoporosis
Brain & nerves
- Benign paroxysmal positional vertigo
- Migraines
- Peripheral neuropathy
Digestive
- Acute diarrhea
- Hemorrhoids
- Viral gastroenteritis
Digestive health
- Acid reflux
- Constipation
- IBS
Eye issues
- Pink eye
Foot & ankle
- Heel pain
General health
- Chronic fatigue
Heart
- Heart palpitations
Heart & circulation
- High cholesterol
Hormones & endocrine
- Hypothyroidism
Infections
- Herpes simplex of the skin
- Shingles
- Strep throat
Joints & bones
- Knee pain
- Neck pain
- Shoulder Pain
Men's health
- Enlarged prostate
- Erectile dysfunction
- Testosterone deficiency
Mental health
- Anxiety
- Depression
Pain
- Sciatica
Pain & musculoskeletal
- Back pain
- Gout
- Osteoarthritis
Respiratory
- Acute bronchitis
- Asthma
- COPD
Sexual health
- Bacterial vaginosis
- Sexually transmitted infections
Skin
- Acne
- Precancerous sun spot
Skin & hair
- Hair loss
Skin & nails
- Foot fungus
Skin issues
- Eczema
- Psoriasis
Sleep
- Insomnia
- Restless legs syndrome
- Sleep apnea
Urinary
- Kidney stones
Weight management
- Obesity
Women's health
- Perimenopause
- Yeast infection
Procedures & services
Most searched procedures
- Annual physical exam
- Routine blood work
- Sick visit
- Sports physical
- Suture removal
- Vaccination
Acute care
- Tick bite evaluation and treatment
Allergy & immunology
- Allergy testing
Care coordination
- Specialist referral consult
Clinical exams
- Pre-surgery clearance
Diabetes care
- Hemoglobin A1c Test
Diagnostics
- In-office urine test
- Rapid flu test
Digestive
- H. Pylori Breath Test
Ear care
- Earwax removal
Endocrine
- Thyroid checkup
Heart & circulation
- EKG
Heart health
- Blood Pressure Check
- Cholesterol and Lipid Blood Panel
- Heart monitor
Injections
- Vitamin B12 Injections
Medication management
- Prescription Refill Visit
Men's health
- Prostate exam
- Testosterone replacement therapy consult
Mental health
- Depression screening
Minor procedures
- Incision and drainage of an abscess
- Ingrown toenail removal
- Skin biopsy
- Skin Tag Removal
- Superficial foreign-body removal
- Wart Removal
- Wound care and dressing
Occupational health
- DOT Physical
Pain & wellness
- Medical Cannabis Evaluation
Pain management
- Joint injection or aspiration
- Trigger-point injection
Preventive care
- Colon cancer screening consult
- Medicare wellness visit
- Smoking cessation counseling
- Travel health clinic and vaccines
Respiratory care
- Breathing Treatment
- Spirometry
Screenings & tests
- Rapid COVID-19 test
- Rapid strep testing
- TB Skin Test
- Urine drug screening
Senior care
- Cognitive and memory screening
- Fall risk assessment
Sexual health
- PrEP consultation
- STI and STD Screening
Skin care
- Cryotherapy for skin spots
- Mole Check
Sleep
- At-home sleep test
Telehealth
- Virtual doctor visit
Urgent care
- Minor laceration repair
- Splinting of minor injuries
Weight management
- Weight loss medication consult
Women's health
- Birth control counseling
- Hormone replacement therapy consult
- Pap smear
Procedures Most Often Billed to Medicare
339 services · 143 patients · 1 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
339 | More than most peers in Nurse Practitioner, Adult |
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.
Related specialists at this location 1
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.
Other nurse practitioners in Smithtown 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at State University of New York at Stony Brook, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at State University of New York at Stony Brook, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Diane Grassi specialize in?
Diane Grassi is a nurse practitioner in Smithtown, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Adult Health”.
NPI registry
Where is Diane Grassi located?
Diane Grassi is listed at 285 E Main St, Smithtown, NY 11787. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Diane Grassi's phone number?
The number on file is (631) 656-0874. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Diane Grassi's NPI number?
Diane Grassi's National Provider Identifier is 1063917136. 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 Diane Grassi train?
Diane Grassi attended State University of New York at Stony Brook, School of Medicine, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Diane Grassi been practicing?
Diane Grassi has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Diane Grassi do most often?
According to Medicare billing data, Diane Grassi the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Diane Grassi confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Diane Grassi. 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.