Maria Van Allen, FNP
NPI 1164688636 · Family Nurse Practitioner · Tucson, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Van Allen, FNP is a Family Nurse Practitioner provider in Tucson, AZ (NPI 1164688636).
Provider details
- NPI number
- 1164688636
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP2359 (AZ)
Specialties & taxonomies
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
17 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
623 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 | 242 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 152 | $108 |
| Test to Measure Exhaled Air for Evaluation of Lung Function at Rest94690 | 77 | $41 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 76 | $12 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 49 | $140 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-04
- Last updated
- 2023-08-29
- Certified
- 2023-08-29
Frequently asked questions
- What is Maria Van Allen's NPI number?
- Maria Van Allen's National Provider Identifier (NPI) is 1164688636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Van Allen's specialty?
- Maria Van Allen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Van Allen located?
- Maria Van Allen's practice location on file with NPPES is 50 E Croydon Park Rd, Tucson, AZ 85704-1633.
- What is Maria Van Allen's phone number?
- The practice phone number listed in the NPPES registry for Maria Van Allen is (520) 696-3438.
- Does Maria Van Allen accept Medicare?
- Maria Van Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Van Allen's NPI active?
- Yes — Maria Van Allen's NPI (1164688636) is active in the NPPES registry as of the last update on 2023-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.