Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Sima Jaffari Mason, MSN, DNP, CRNA

Q: What is the NPI number for Sima Mason?

The National Provider Identifier (NPI) for Sima Mason is 1659941060, a Type 1 (individual) record in the CMS NPPES registry.

Certified Registered Nurse Anesthetist in Cumberland, MD · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659941060

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Registry record

Entity type Individual (Type 1)

Name Ms. Sima Jaffari Mason

Credential MSN, DNP, CRNA

Sex Female

Practice address 12500 Willowbrook Rd, Cumberland, MD, 21502

Phone (240) 964-7000

Enumeration date Jun 28, 2021

Last updated in NPPES Jul 7, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN727245 (PA) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License CRNA1044920 (DC) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 7564 (NC) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 0024190891 (VA) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License APRN.CRNA.0021181 (OH) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License R241951 (MD) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Sima Mason?

The National Provider Identifier (NPI) for Sima Mason is 1659941060, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sima Mason practice?

The practice location on file with NPPES is in Cumberland, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-07.