NPPES file of Aug 9, 2026

Li Liang, MD

Allergy Physician · Chelmsford, MA

Li Liang, MD is an allergy physician with a practice address in Chelmsford, Massachusetts, and NPI 1912994567, issued on Sep 29, 2005. Check the license (Massachusetts 214164, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912994567
Name
Li Liang
Credential
MD
Primary taxonomy
Allergy Physician 207KA0200X
License numbers
214164 MA
11815 NH
Self-reported in NPPES; status is on the state search
Practice location
9 Village SQ, Chelmsford, MA 01824
Phone
(978) 256-4531
Enumerated
Sep 29, 2005
Record last updated
Nov 20, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(978) 256-1377
Medicare enrollment
Enrolled (PECOS I20060213000148); 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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Also registered at 9 Village SQ

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

  1. Angela Ahuja, MDAllergy & Immunology Physician1851300230
  2. Wilfred Beaucher, MDAllergy Physician1932109055
  3. Mary Farrahar, NURSE PRACTITIONERFamily Nurse Practitioner1316992555
  4. David Gruenberg, M.D.Allergy & Immunology Physician1386773422
  5. Ami Mehra, M.D.Allergy & Immunology Physician1760400634
  6. Elizabeth YakaboskiAllergy & Immunology Physician1134583560

Verify Li Liang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 214164
    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
Open the Massachusetts 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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71% fewer Medicare Part D claims than the average allergy physician in 2024

219 Medicare Part D claims for 85 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Li Liang219
  2. Specialty average750

Most prescribed

  1. Breo Ellipta34 claims
  2. Trelegy Ellipta29 claims
  3. Prednisone25 claims
  4. Albuterol Sulfate Hfa18 claims
  5. Montelukast Sodium18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $717.63

25 payments; by number, the most common kind was food and beverage; the largest payer was Blueprint Medicines Corporation. The 502 providers of this specialty with any payment received $9,080.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Li Liang$717.63
  2. Specialty average$9,080.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Allergy And Asthma Specialists, PCNashua, NH

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

Li Liang among 37 allergy physician records in Massachusetts

Li Liang, MD is one of 37 allergy physician records with a practice address in Massachusetts. 46% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 76% newer
  • In a Medicare fileYes · 46% of these records are
  • In the CMS Doctors and Clinicians fileYes · 35% of these records are
  • Graduated1982 · median 1986 among the 13 with a school on file
  • Record last updated2013 · 89% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy Physician providers in Massachusetts

There are 37 allergy physician records in Massachusetts.

The 8 allergy physician records with the nearest ZIP codes

  1. Wilfred Beaucher, MDChelmsford, MA 018241932109055
  2. Joseph Kelleher Jr, MDBurlington, MA 018051235224353
  3. John Saryan, MDBurlington, MA 018051053406157
  4. Bryan Stone, M.D.Lawrence, MA 018431720095144
  5. Priyal Amin, DOWestford, MA 018861174784045
  6. Ralph Cahaly, M.D.Milford, MA 017571790778553
  7. Curtis Moody, M.D.Concord, MA 017421366499154
  8. Frank Twarog, M.D.,PH.D.Concord, MA 017421386676674

Common questions

What is Li Liang, MD's NPI number?

Li Liang, MD's National Provider Identifier (NPI) is 1912994567, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Li Liang, MD located?

The NPPES record lists a practice address at 9 Village SQ, Chelmsford, MA, 01824. Phone: (978) 256-4531. Providers update this record themselves, so call before visiting.

How can I verify Li Liang, MD's license?

NPPES lists Massachusetts license number 214164, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Li Liang, MD prescribe under Medicare Part D?

In 2024, Li Liang, MD had 219 Medicare Part D claims for 85 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions 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.

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.