Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Li Liang, MD
Allergy Physician in Chelmsford, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912994567
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Registry record
Entity type Individual (Type 1)
Name Dr. Li Liang
Credential MD
Sex Male
Practice address 9 Village Sq, Chelmsford, MA, 01824
Phone (978) 256-4531
Fax (978) 256-1377
Enumeration date Sep 29, 2005
Last updated in NPPES Nov 20, 2013
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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
Where does Li Liang practice?
The practice location on file with NPPES is in Chelmsford, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Li Liang?
The National Provider Identifier (NPI) for Li Liang is 1912994567, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Wilfred Beaucher Allergy Physician · Chelmsford, MA NPI 1932109055 Allergy & Asthma Specialists, PC Allergy & Immunology Physician · Chelmsford, MA NPI 1306837968 Mary Farrahar Family Nurse Practitioner · Chelmsford, MA NPI 1316992555 Ami Mehra Allergy & Immunology Physician · Chelmsford, MA NPI 1760400634 Angela Ahuja Allergy & Immunology Physician · Chelmsford, MA NPI 1851300230 David Gruenberg Allergy & Immunology Physician · Chelmsford, MA NPI 1386773422 Allergy & Asthma Specialists, PC Allergy & Immunology Physician · Chelmsford, MA NPI 1760785695 Allergy & Asthma Specialists, LLC Allergy & Immunology Physician · Chelmsford, MA NPI 1497151666
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-20.