Mark Tyo
NPI 1386359420 · Family Nurse Practitioner · Hyannis, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Tyo is a Family Nurse Practitioner provider in Hyannis, MA (NPI 1386359420).
Provider details
- NPI number
- 1386359420
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- RN243734 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 375 | 153 |
| Testosterone Cypionate | 234 | 49 |
| Methenamine Hippurate | 135 | 45 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 134 | 61 |
| Ciprofloxacin Hcl | 131 | 112 |
| Finasteride | 130 | 54 |
| Testosterone | 119 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,197 across 54 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-01-23
- Last updated
- 2023-01-23
- Certified
- 2022-11-02
Frequently asked questions
- What is Mark Tyo's NPI number?
- Mark Tyo's National Provider Identifier (NPI) is 1386359420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Tyo's specialty?
- Mark Tyo is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Tyo located?
- Mark Tyo's practice location on file with NPPES is 110 Main St Unit a, Hyannis, MA 02601-3135.
- What is Mark Tyo's phone number?
- The practice phone number listed in the NPPES registry for Mark Tyo is (508) 771-9550.
- Does Mark Tyo accept Medicare?
- Mark Tyo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Tyo's NPI active?
- Yes — Mark Tyo's NPI (1386359420) is active in the NPPES registry as of the last update on 2023-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.