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Edit this profileAt a glance
- 31 Main Rd Ste 2, Riverhead, NY 11901
About Mariah Messina
Mariah L. Messina, PA-C is a physician assistant — medical based in Riverhead, NY. According to Medicare claims data, Mariah cared for 46 Medicare patients across 238 services. The services billed most often include therapy procedure using ultraviolet radiation with tar or petroleum jelly application and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1285272740.
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
- (631) 740-9273
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
31 MAIN RD STE 2
Riverhead, NY 11901
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Medical 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
Digestive
Most searched conditions
Allergies
Blood
Bone and joint
Digestive health
Ear, Nose & Throat
Endocrine
Eye Care
Foot and ankle
General Health
Hair and scalp
Headache and brain
Heart & Circulation
Hormones
Infections
Injury
Men's Health
Mental Health
Metabolic
Nerve conditions
Neurology
Pain
Respiratory
Sexual Health
Skin
Skin cancer
Skin conditions
Sleep
Women's Health
Procedures & services
Diagnostic Tests
- COVID-19 Rapid Test
- Rapid Flu Swab
- Urine Pregnancy Test
- Mono Rapid Test
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
Exams
- School and camp physical
- DOT Physical Exam
- Medicare annual wellness visit
- Pre-Employment Physical
Most searched procedures
Allergies
- Allergy Testing and Shots
Counseling
Dermatology
Ear, Nose & Throat
- Earwax removal
- Removal of Foreign Object from Ear or Nose
Evaluations
General Care
Heart & Circulation
Heart health
Hormones
Injections
Injury Care
- Burn Treatment
- Splinting and temporary casting
Lab tests
Mental Health
Metabolic
- Weight Loss Medication Consultation
Minor surgery
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
Prevention
Respiratory
Screening
- Blood Pressure Check and Monitoring
- STI and STD Screening
Skin procedures
- Mole Check
- Mole removal
- Wart Removal
Treatments
Virtual care
Women's Health
Women's health
- Pap smear
Procedures Most Often Billed to Medicare
238 services · 46 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Therapy procedure using ultraviolet radiation with tar or petroleum jelly application | Treatment | 96910 |
197 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
41 | As often as other peers in Physician Assistant — Medical |
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 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.
Other physician assistants in Riverhead 8
Same specialty, same city.
More connections — 18 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Therapy procedure using ultraviolet radiation with tar or petroleum jelly application 2
Providers in NY who bill this service to Medicare most often.
Common questions
What kind of doctor is Mariah L. Messina?
Mariah L. Messina is a physician assistant in Riverhead, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Medical”.
NPI registry
What is Mariah L. Messina's address?
Mariah L. Messina is listed at 31 Main Rd Ste 2, Riverhead, NY 11901. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mariah L. Messina?
The number on file is (631) 740-9273. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mariah L. Messina's NPI number?
Mariah L. Messina's National Provider Identifier is 1285272740. 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 Mariah L. Messina train?
Mariah L. Messina attended Other, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Mariah L. Messina been practicing?
Mariah L. Messina has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mariah L. Messina perform?
According to Medicare billing data, Mariah L. Messina provides treatments such as therapy procedure using ultraviolet radiation with tar or petroleum jelly application, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mariah L. Messina confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mariah L. Messina. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.