Provider Profile
Dennis Tan, NP-C
Unclaimed ProfileAbout Dennis Tan
Dennis Tan, NP-C is a nurse practitioner practicing in Cambridge, MA. According to Medicare claims data, Dennis cared for 291 Medicare patients across 445 services. The services billed most often include visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (617) 492-3500
- Email not available
Practice Locations
300 MOUNT AUBURN ST STE 517
Cambridge, MA 02138
745 River St
Hyde Park, MA 02136
Procedures Most Often Billed to Medicare
445 services · 291 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
122 | More often than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
103 | More often than most peers in Nurse Practitioner |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
99 | As often as other peers in Nurse Practitioner |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
78 | As often as other peers in Nurse Practitioner |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
28 | Less often than most peers in Nurse Practitioner |
| Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) | Lab test | 87811 |
15 | Less often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nurse practitioners in Cambridge 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2022 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dennis Tan specialize in?
Dennis Tan is a nurse practitioner in Cambridge, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dennis Tan located?
Dennis Tan is listed at 300 Mount Auburn St Ste 517, Cambridge, MA 02138. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dennis Tan's phone number?
The number on file is (617) 492-3500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dennis Tan's NPI number?
Dennis Tan's National Provider Identifier is 1255903696. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dennis Tan train?
Dennis Tan attended Other, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How long has Dennis Tan been practicing?
Dennis Tan has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
What does Dennis Tan do most often?
According to Medicare billing data, Dennis Tan the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dennis Tan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dennis Tan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.