Dennis Tan, NP-C
Nurse Practitioner · Cambridge, MA
Dennis Tan, NP-C is a nurse practitioner with a practice address in Cambridge, Massachusetts, and NPI 1255903696, issued on Jul 14, 2021. Check the license (Massachusetts RN2313462, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dennis Tan
- Credential
- NP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN2313462 MA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Mount Auburn St Ste 517, Cambridge, MA 02138
- Phone
- (617) 492-3500
- Enumerated
- Jul 14, 2021
- Record last updated
- Feb 23, 2023
- Medicaid ID
- 1255903696 MA
- Medicare enrollment
- Enrolled (PECOS I20230727001260); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
Verify Dennis Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2313462Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average nurse practitioner in 2024
399 Medicare Part D claims for 142 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 47 claims were for opioids.
Most prescribed
- Amlodipine Besylate21 claims
- Prednisone19 claims
- Tramadol Hcl19 claims
- Lorazepam17 claims
- Oxycodone Hcl13 claims
- Famotidine12 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
- Mount Auburn Professional Services IncArlington, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dennis Tan among 3,480 nurse practitioner records in Massachusetts
Dennis Tan, NP-C is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 75% of them.
- NPI issued2021 · 75% of these records are older, 20% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2022 · median 2017 among the 1,963 with a school on file
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
52 nurse practitioner records list a practice address in Cambridge
They are 52 of the 5,145 NPPES records with a practice address in Cambridge, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Cambridge → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Andrea Crowley, NPCambridge, MA 021381205851607
- Frances Dilks, NPCambridge, MA 021381831124312
- Sharon Follayttar, NPCambridge, MA 021381639104110
- Maria Francesconi, NPCambridge, MA 021381720007255
- Virginia Grassa, NPCambridge, MA 021381982639464
- Donna Gross, NPCambridge, MA 021381760401285
- Yolanda Hobin, NPCambridge, MA 021381336174812
- Audrey Killion, NPCambridge, MA 021381700805231
Common questions
What is Dennis Tan, NP-C's NPI number?
Dennis Tan, NP-C's National Provider Identifier (NPI) is 1255903696, issued on Jul 14, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Tan, NP-C located?
The NPPES record lists a practice address at 300 Mount Auburn St Ste 517, Cambridge, MA, 02138. Phone: (617) 492-3500. Providers update this record themselves, so call before visiting.
How can I verify Dennis Tan, NP-C's license?
NPPES lists Massachusetts license number RN2313462, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Dennis Tan, NP-C prescribe under Medicare Part D?
In 2024, Dennis Tan, NP-C had 399 Medicare Part D claims for 142 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.