2026 data CMS NPPES NUCC Taxonomy

Doctors in Sinajana, GU

Active healthcare providers in Sinajana sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

12
Providers
CMS NPPES-registered
11
Specialties
NUCC taxonomy codes
Nephrology Physician
Top specialty
2 providers
Guam
State
GU

Where this city sits in the corpus

Sinajana ranks 7th among 10 Guam cities by CMS provider count, holding 1.5% of the state's NPIs, led by Nephrology Physician.

12
NPPES providers in city
7th
of 10 GU cities
1.5%
of Guam providers
33.3%
in top 3 specialties

Sinajana ranks #1 of 2 Guam cities for Nephrology Physician.

Where Sinajana ranks among Guam cities

Provider count vs every Guam city in CMS NPPES (10 cities)

12 20th percentile higher than 20% of 10 cities

0–50: 7 cities (70%). This entry sits in this band. 50–100: 0 cities (0%). Above this entry. 100–150: 2 cities (20%). Above this entry. 150–200: 0 cities (0%). Above this entry. 200–250: 0 cities (0%). Above this entry. 250–300: 0 cities (0%). Above this entry. 300–350: 0 cities (0%). Above this entry. 350–400: 0 cities (0%). Above this entry. 400+: 1 cities (10%). Above this entry. This city 0 400+ Guam cities (providers), bucketed by value

Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS National Plan & Provider Enumeration System (NPPES) · 2026

Specialty mix in Sinajana

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Nephrology Physician is the largest specialty (2 providers, 16.7% of the city), followed by Student in an Organized Health Care Education/Training Program.

Source CMS NPPES · city_top_specialties As of 2026
How to read this directory & data limitations

Sinajana, Guam appears in the CMS National Plan and Provider Enumeration System with 12 registered healthcare providers spanning 11 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Sinajana - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Sinajana practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Sinajana is weighted toward Nephrology Physician (2 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1 and Family Nurse Practitioner with 1). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Guam's population, Sinajana reports roughly 7.8 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of Guam's most common specialties, Registered Nurse is the most prominent one with no provider currently listing a Sinajana practice address, a coverage gap Sinajana patients typically fill by traveling to a larger nearby hub.

For Sinajana patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

Which specialties are most common in Sinajana

Healthcare Providers

Name
Marvir Caliguia, RPH
Pharmacist
Evangeline Claassens, NP
Family Nurse Practitioner
Yang He, RN, CDE
Diabetes Educator Registered Nurse
Matthew Klocek, MD, PHD
Student in an Organized Health Care Education/Training Program
Peter Lombard, M.D.
Ophthalmology Physician
Robert Nerves, MD, FACP, FPCP
Nephrology Physician
Aziz Sabeti, DPT
Physical Therapist
Saied Safabakhsh, M.D.
Nephrology Physician
Dennise Salazar, PA-C
Physician Assistant
Mary Grace Santos, M.D.
Internal Medicine Physician
Joan Swaddell, M.A.
Professional Counselor
Tiffany Troxel, PAC
Medical Physician Assistant

Nearby Cities in Guam

Other Guam cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Sinajana, GU?
There are 12 registered healthcare providers in Sinajana, GU, covering 11 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Sinajana?
The most common specialties in Sinajana are Nephrology Physician, Student in an Organized Health Care Education/Training Program, Family Nurse Practitioner, Medical Physician Assistant, Physician Assistant. Nephrology Physician has the most providers with 2.
Related guides

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.