Marietta Guajardo, FNP-BC
NPI 1033512868 · Nurse Practitioner · Modesto, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marietta Guajardo, FNP-BC is a Nurse Practitioner provider in Modesto, CA (NPI 1033512868).
Provider details
- NPI number
- 1033512868
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- AP126286 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
788 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 225 | $143 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 206 | $111 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 107 | $96 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 96 | $79 |
| Transitional Care Management Services for Problem of High Complexity99496 | 36 | $243 |
| Removal of Impacted Ear Wax69210 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 61 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 137 | 122 |
| Fluticasone Propionate | 113 | 78 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 91 | 53 |
| Amlodipine Besylate | 84 | 47 |
| Levothyroxine Sodium | 75 | 34 |
| Azithromycin | 73 | 70 |
Practice location
Mailing address
Additional practice locations (1)
- 7913 Bandera RdSan Antonio, TX 78250-6511Phone: (210) 698-9841Fax: (210) 698-9863
Registry dates
- Enumerated
- 2014-10-07
- Last updated
- 2026-05-26
- Certified
- 2026-05-26
Frequently asked questions
- What is Marietta Guajardo's NPI number?
- Marietta Guajardo's National Provider Identifier (NPI) is 1033512868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marietta Guajardo's specialty?
- Marietta Guajardo is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marietta Guajardo located?
- Marietta Guajardo's practice location on file with NPPES is 600 Coffee Rd, Modesto, CA 95355-4201.
- What is Marietta Guajardo's phone number?
- The practice phone number listed in the NPPES registry for Marietta Guajardo is (209) 524-1211.
- Does Marietta Guajardo accept Medicare?
- Marietta Guajardo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marietta Guajardo's NPI active?
- Yes — Marietta Guajardo's NPI (1033512868) is active in the NPPES registry as of the last update on 2026-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.