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.
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
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
- Nephrology Physician
Nephrology Physician
2 providers
- Student in an Organi…
Student in an Organized Health Care Education/Training Program
1 providers
- Family Nurse Practit…
Family Nurse Practitioner
1 providers
- Medical Physician As…
Medical Physician Assistant
1 providers
- Physician Assistant
Physician Assistant
1 providers
- Physical Therapist
Physical Therapist
1 providers
- Ophthalmology Physic…
Ophthalmology Physician
1 providers
- Internal Medicine Ph…
Internal Medicine Physician
1 providers
- Pharmacist
Pharmacist
1 providers
- Diabetes Educator Re…
Diabetes Educator Registered Nurse
1 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.
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
| # | Specialty | Providers | % of city |
|---|---|---|---|
| 1 | Nephrology Physician | 2 | 16.7% |
| 2 | Student in an Organized Health Care Education/Training Program | 1 | 8.3% |
| 3 | Family Nurse Practitioner | 1 | 8.3% |
| 4 | Medical Physician Assistant | 1 | 8.3% |
| 5 | Physician Assistant | 1 | 8.3% |
| 6 | Physical Therapist | 1 | 8.3% |
| 7 | Ophthalmology Physician | 1 | 8.3% |
| 8 | Internal Medicine Physician | 1 | 8.3% |
| 9 | Pharmacist | 1 | 8.3% |
| 10 | Diabetes Educator Registered Nurse | 1 | 8.3% |
| 11 | Professional Counselor | 1 | 8.3% |
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.
Frequently Asked Questions
How many doctors are in Sinajana, GU?
What are the most common medical specialties in Sinajana?
Related guides
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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.
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.