NPPES file of Aug 9, 2026

Natalie Masi

Registered Nurse · Philadelphia, PA

Natalie Masi is a registered nurse with a practice address in Philadelphia, Pennsylvania, and NPI 1063091866, issued on Apr 7, 2021. Check the license (Pennsylvania RN659990, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063091866
Name
Natalie Masi
Primary taxonomy
Registered Nurse 163W00000X
License number
RN659990 PA
Self-reported in NPPES; status is on the state search
Practice location
301 S 8TH St Ste 2I, Philadelphia, PA 19106
Phone
(267) 322-7700
Enumerated
Apr 7, 2021
Record last updated
Apr 7, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210610003054); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest registered nurse records → All 5,372 in Pennsylvania → Look up another NPI →

Also registered at 301 S 8TH St Ste 2I

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Leslie Chiaradonna, DNP-NACertified Registered Nurse Anesthetist1669050753
  2. Christa Davis, M.D.Anesthesiology Physician1255726402
  3. John NegroCertified Registered Nurse Anesthetist1023751880

Verify Natalie Masi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license RN659990    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Society Hill Anesthesia Consultants PCPhiladelphia, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Natalie Masi among 5,372 registered nurse records in Pennsylvania

Natalie Masi is one of 5,372 registered nurse records with a practice address in Pennsylvania. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 57% of them.

  • NPI issued2021 · 57% of these records are older, 29% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 3% of these records are
  • Graduated2021 · median 2021 among the 151 with a school on file
  • Record last updated2021 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

536 registered nurse records list a practice address in Philadelphia

They are 536 of the 42,849 NPPES records with a practice address in Philadelphia, and 5,372 registered nurse records in Pennsylvania.

All 5,372 in Pennsylvania → Every provider in Philadelphia → Registered Nurse nationwide →

The 8 registered nurse records with the nearest ZIP codes

  1. Maria Demarco, RN, DNP, CCRN-K, NHAPhiladelphia, PA 191061568050771
  2. Jasmine Hurt, RN, MSNPhila, PA 191061083488688
  3. Renee KravchakPhiladelphia, PA 191061730057779
  4. Joanne Marquis, RN, MSPhiladelphia, PA 191061861160624
  5. Renata Mayer, CRNAPhiladelphia, PA 191061194188946
  6. My Linh Nguyen, RN-BSNPhiladelphia, PA 191061760902241
  7. Jennifer Schulz, RNPhiladelphia, PA 191061144665241
  8. Donna Baskette, CRNAPhiladelphia, PA 191071225194525

Common questions

What is Natalie Masi's NPI number?

Natalie Masi's National Provider Identifier (NPI) is 1063091866, issued on Apr 7, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Natalie Masi located?

The NPPES record lists a practice address at 301 S 8TH St Ste 2I, Philadelphia, PA, 19106. Phone: (267) 322-7700. Providers update this record themselves, so call before visiting.

How can I verify Natalie Masi's license?

NPPES lists Pennsylvania license number RN659990, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.