Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mao Lin, D.D.S.
Endodontics in Olney, MD · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588781413
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Registry record
Entity type Individual (Type 1)
Name Dr. Mao Lin
Credential D.D.S.
Sex Male
Practice address 18109 Prince Philip Dr, Suite 350, Olney, MD, 20832
Phone (301) 774-1181
Enumeration date Mar 24, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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.
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 Mao Lin?
Mao Lin is registered in NPPES with the primary taxonomy of Endodontics. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Edward Taubman Internal Medicine Physician · Olney, MD NPI 1407859085 Robert Fields Internal Medicine Physician · Olney, MD NPI 1578563292 Jane Daly Oral and Maxillofacial Surgery (Dentist) · Olney, MD NPI 1245215193 John Mennitt Oral and Maxillofacial Surgery (Dentist) · Olney, MD NPI 1316922263 Jonathan Klontz Pediatrics Physician · Olney, MD NPI 1730150418 Elaine Lee Pediatrics Physician · Olney, MD NPI 1720059595 Cheryl Dias Pediatrics Physician · Olney, MD NPI 1346211042 Steven Shimoura Otolaryngology Physician · Olney, MD NPI 1457314981
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.