Mary Jean Cuaycong, MD
NPI 1457681918 · Internal Medicine Physician · Fort Defiance, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Jean Cuaycong, MD is a Internal Medicine Physician provider in Fort Defiance, AZ (NPI 1457681918).
Provider details
- NPI number
- 1457681918
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD00048231 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
362 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 252 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 57 | $146 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 53 | $148 |
Typical Medicare-allowed amounts for these services range $104–$148 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 33 | 17 |
| Amlodipine Besylate | 18 | — |
| Lisinopril | 16 | — |
| Gabapentin | 15 | — |
| Rosuvastatin Calcium | 14 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-01-06
- Last updated
- 2025-07-24
- Certified
- 2025-07-17
Frequently asked questions
- What is Mary Jean Cuaycong's NPI number?
- Mary Jean Cuaycong's National Provider Identifier (NPI) is 1457681918, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Jean Cuaycong's specialty?
- Mary Jean Cuaycong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Jean Cuaycong located?
- Mary Jean Cuaycong's practice location on file with NPPES is Corner of Route N12 and N7, Fort Defiance, AZ 86504-0649.
- What is Mary Jean Cuaycong's phone number?
- The practice phone number listed in the NPPES registry for Mary Jean Cuaycong is (928) 729-8000.
- Does Mary Jean Cuaycong accept Medicare?
- Mary Jean Cuaycong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Jean Cuaycong's NPI active?
- Yes — Mary Jean Cuaycong's NPI (1457681918) is active in the NPPES registry as of the last update on 2025-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.