Mark Mariano Deguzman, FNP
NPI 1558818799 · Family Nurse Practitioner · Bronx, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Mariano Deguzman, FNP is a Family Nurse Practitioner provider in Bronx, NY (NPI 1558818799).
Provider details
- NPI number
- 1558818799
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 691581 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 48 |
| Atorvastatin Calcium | 30 |
| Amlodipine Besylate | 26 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 25 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 25 |
| Estradiol | 20 |
| Dolutegravir Sodiumbrand: Tivicay | 20 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$693 across 25 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
Additional practice locations (1)
- 1575 Lexington AvenueApt 6Manhattan, NY 10029-6214Phone: (703) 508-8730
Registry dates
- Enumerated
- 2016-09-06
- Last updated
- 2025-03-13
- Certified
- 2025-03-13
Frequently asked questions
- What is Mark Mariano Deguzman's NPI number?
- Mark Mariano Deguzman's National Provider Identifier (NPI) is 1558818799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Mariano Deguzman's specialty?
- Mark Mariano Deguzman is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Mariano Deguzman located?
- Mark Mariano Deguzman's practice location on file with NPPES is 3144 3rd Ave, Bronx, NY 10451-4629.
- What is Mark Mariano Deguzman's phone number?
- The practice phone number listed in the NPPES registry for Mark Mariano Deguzman is (212) 271-7200.
- Does Mark Mariano Deguzman accept Medicare?
- Mark Mariano Deguzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Mariano Deguzman's NPI active?
- Yes — Mark Mariano Deguzman's NPI (1558818799) is active in the NPPES registry as of the last update on 2025-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.