Mary Ann Villalon, PMHNP-BC
NPI 1447936984 · Psychiatric/Mental Health Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ann Villalon, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Chicago, IL (NPI 1447936984).
Provider details
- NPI number
- 1447936984
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 209028066 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,755 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,229 | $65 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,025 | $65 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 299 | $56 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 297 | $94 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 241 | $63 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 572 | 127 |
| Trazodone Hcl | 345 | 79 |
| Mirtazapine | 312 | 69 |
| Quetiapine Fumarate | 207 | 36 |
| Escitalopram Oxalate | 151 | 27 |
| Olanzapine | 117 | 21 |
| Buspirone Hcl | 114 | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$249 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 250 S Northwest Hwy Ste 110Park Ridge, IL 60068-4237Phone: (224) 985-5824
Registry dates
- Enumerated
- 2023-06-27
- Last updated
- 2025-09-09
- Certified
- 2025-09-09
Frequently asked questions
- What is Mary Ann Villalon's NPI number?
- Mary Ann Villalon's National Provider Identifier (NPI) is 1447936984, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Villalon's specialty?
- Mary Ann Villalon is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Ann Villalon located?
- Mary Ann Villalon's practice location on file with NPPES is 1203 W Augusta Blvd Ste 1, Chicago, IL 60642-4327.
- What is Mary Ann Villalon's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Villalon is (773) 248-2255.
- Does Mary Ann Villalon accept Medicare?
- Mary Ann Villalon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ann Villalon's NPI active?
- Yes — Mary Ann Villalon's NPI (1447936984) is active in the NPPES registry as of the last update on 2025-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.