Gregory J. Howarth, PA
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 49
- Hospital affiliations
- 3
- Medical groups
- 6
- State license
- 1
- Practice address
- One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557
- Practice phone
- Call (508) 693-0410
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Gregory Howarth's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gregory J. Howarth is a physician assistant in Oak Bluffs, Massachusetts
Gregory Howarth practices at Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham.
Gregory Howarth's NPI, 1508114018, was assigned on August 15, 2012. Gregory Howarth holds Massachusetts license PA4465.
- NPI
- 1508114018NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527219179
- NPI enumeration date
- August 15, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 693-0410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gregory J. Howarth practices at 2 locations in Oak Bluffs, Massachusetts
Gregory Howarth's primary practice is Martha's Vineyard Hospital, at One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557 in Dukes County. The practice phone is (508) 693-0410. Gregory Howarth also practices at Martha's Vineyard Hospital, 1 Hospital Way, Oak Bluffs, MA 02557.
- Martha's Vineyard HospitalPrimaryOne Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557 · Dukes CountyPhone(508) 693-0410
- Martha's Vineyard Hospital1 Hospital Way, Oak Bluffs, MA 02557 · Dukes CountyPhone(508) 693-0410
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Gregory J. Howarth is affiliated with 4 sites of care and 6 medical groups
Gregory Howarth's primary practice is Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham. Gregory Howarth is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Gregory Howarth to 1 more hospital, 5 medical groups and 1 senior living community, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gregory J. Howarth's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Howarth practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Martha's Vineyard Hospital | Available with a free account |
| +3 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Gregory J. Howarth is one of 3,922 physician assistants in Massachusetts
Physician assistant is Gregory Howarth's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gregory Howarth is licensed in Massachusetts.
Specialties and state licenses
- Physician assistant, MassachusettsPrimary
Physician assistants near Gregory Howarth
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Gregory J. Howarth treated 13 Medicare patients in 2024, average age 69
CMS counts 13 Medicare patients who saw Gregory Howarth in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Gregory Howarth's median patient age at 70, with 53% women.
Chronic conditions among Gregory Howarth's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Gregory Howarth's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gregory J. Howarth wrote 49 Medicare Part D claims in 2024
In 2024, Gregory Howarth wrote 49 Medicare Part D claims for 35 patients. 90% of them were for generic drugs.
Gregory Howarth's Part D claims by kind of drug, 2024
- Generic44 claims90%
- Brand-name and other5 claims10%
Drug classes CMS tracks in Gregory Howarth's Part D claims, 2024
- Antibiotics55%27 of 49 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Gregory J. Howarth takes part in Medicare
Gregory Howarth accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Gregory J. Howarth's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Gregory J. Howarth
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory J. Howarth's NPI number?
Gregory J. Howarth's NPI number is 1508114018. It was assigned on August 15, 2012, and it is active in the NPI Registry.
What does Gregory J. Howarth specialize in?
Gregory J. Howarth is a physician assistant in Oak Bluffs, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gregory J. Howarth practice?
Gregory Howarth practices at One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557. Gregory Howarth also practices at 1 Hospital Way, Oak Bluffs, MA 02557. Gregory Howarth's primary practice is Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham. Dmand AI also links Gregory Howarth to 1 hospital, 5 medical groups and 1 senior living community.
What is Gregory J. Howarth's office phone number?
The practice phone on file for Gregory Howarth is (508) 693-0410.
What is Gregory J. Howarth's medical license number?
Gregory Howarth holds Massachusetts license PA4465.
Which hospitals is Gregory J. Howarth affiliated with?
Gregory Howarth practices at Martha's Vineyard Hospital in Oak Bluffs, Massachusetts. Gregory Howarth is also affiliated with Massachusetts General Hospital. Dmand AI links Gregory Howarth to 1 more hospital.
What medical group is Gregory J. Howarth part of?
Gregory Howarth is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Gregory Howarth to 5 more medical groups.
Does Gregory J. Howarth accept Medicare?
Yes. CMS lists Gregory Howarth as accepting Medicare assignment.
How many Medicare patients does Gregory J. Howarth see?
CMS counts 13 Medicare patients who saw Gregory Howarth in 2024, with an average age of 69.
How long has Gregory J. Howarth been practicing?
Gregory Howarth graduated from medical school in 2012, 14 years ago.
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