NPI Portal NPI Lookup & Verification

Dr. Mayer Green, DC, FNP-C

Dr. Mayer Green is a Family Nurse Practitioner provider (Nurse Practitioner) practicing in Silver Spring, MD, registered in the NPPES registry with NPI 1922203785 since 2007. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1922203785
Entity type Individual (Type 1)
Name Dr. Mayer Green
Credential DC, FNP-C
Sex Male
Practice address Silver Spring, MD, 20902
Phone 3019337827
Fax 2402900342
Enumeration date 2007-06-20
Last updated in NPPES 2025-07-24

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
363LF0000X Family Nurse Practitioner Primary R257074 MD
111N00000X Chiropractor Secondary S03527 MD

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details
Provider: Mayer Green, DC, FNP-C
NPI: 1922203785
Taxonomy: 363LF0000X (Family Nurse Practitioner)
Address: Silver Spring, MD, 20902

Other providers at this practice address

NPI Name Type Specialty Location
1932179108 John Melmed Individual Specialist Silver Spring, MD
1770635526 Joel Starr Individual Chiropractor Silver Spring, MD
1831241694 Gregg Salzman Individual Chiropractor Wheaton, MD
1417098468 Joel Michael Starr Organization Chiropractor Silver Spring, MD
1942405204 Rhonda Lehman Individual Mental Health Counselor Silver Spring, MD
1437458783 Robert Stone Individual Massage Therapist Wheaton, MD
1386920056 Silver Spring Medical Center, LLC Organization Non-Pharmacy Dispensing Site Silver Spring, MD
1831852904 Barbara Kindle Individual Family Nurse Practitioner Silver Spring, MD

Verify this record

Cross-check NPI 1922203785 against the authoritative CMS record: view Dr. Mayer Green on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Mayer Green?
Mayer Green is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-07-24.