Ruili Gu, M.D.
Internal Medicine Physician · Danvers, MA
Ruili Gu, M.D. is an internal medicine physician with a practice address in Danvers, Massachusetts, and NPI 1104858851, issued on Jul 6, 2006. Check the license (Massachusetts 150606, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ruili Gu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 150606 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Hutchinson Dr, Danvers, MA 01923
- Phone
- (978) 739-6950
- Enumerated
- Jul 6, 2006
- Record last updated
- Mar 29, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (978) 777-9274
- Medicaid ID
- 0159662 MA
- Medicare enrollment
- Enrolled (PECOS I20051021000055); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 1 Hutchinson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marybeth Baker, APRN, BCAdult Health Nurse Practitioner1972515583
- Stephanie Barbeau, N.P.Nurse Practitioner1417957762
- Melissa Brady, MSW, LICSW, CSW-GClinical Social Worker1649419110
- Kristy Cahill, M.D.Internal Medicine Physician1528228608
- Christine Call, FNP-CFamily Nurse Practitioner1083420905
- Linda Jones, M.D.Obstetrics & Gynecology Physician1275502643
Verify Ruili Gu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 150606Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average internal medicine physician in 2024
3,984 Medicare Part D claims for 419 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 70 claims were for opioids.
Most prescribed
- Atorvastatin Calcium357 claims
- Levothyroxine Sodium239 claims
- Simvastatin216 claims
- Lisinopril188 claims
- Omeprazole185 claims
- Metoprolol Succinate130 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.
Bills Medicare through one group practice
- Mass General Brigham Medical Group Northern Massachusetts IncDanvers, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruili Gu among 6,825 internal medicine physician records in Massachusetts
Ruili Gu, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1986 · median 2004 among the 4,103 with a school on file
- Record last updated2017 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 internal medicine physician records list a practice address in Danvers
They are 28 of the 2,058 NPPES records with a practice address in Danvers, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Danvers → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mauri Cohen, M.D.Danvers, MA 019231093767857
- Cerima Durakovic-Seremet, MDDanvers, MA 019231356397160
- James Hickey, MDDanvers, MA 019231265488076
- Rebecca Lee, M.D.Danvers, MA 019231497723415
- Margaret Legner, MDDanvers, MA 019231023006962
- Timothy Loughran, MDDanvers, MA 019231083659585
- Mark Messenger, MDDanvers, MA 019231194726471
- Brenda Minor, MDDanvers, MA 019231932155520
Common questions
What is Ruili Gu, M.D.'s NPI number?
Ruili Gu, M.D.'s National Provider Identifier (NPI) is 1104858851, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruili Gu, M.D. located?
The NPPES record lists a practice address at 1 Hutchinson Dr, Danvers, MA, 01923. Phone: (978) 739-6950. Providers update this record themselves, so call before visiting.
How can I verify Ruili Gu, M.D.'s license?
NPPES lists Massachusetts license number 150606, 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 Ruili Gu, M.D. prescribe under Medicare Part D?
In 2024, Ruili Gu, M.D. had 3,984 Medicare Part D claims for 419 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.