Timothy Johnson, M.D.
NPI 1801879762 · Hematology & Oncology Physician · Springfield, MA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Johnson, M.D. is a Hematology & Oncology Physician provider in Springfield, MA (NPI 1801879762).
Provider details
- NPI number
- 1801879762
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 220236 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
942 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 297 | $65 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 288 | $96 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 265 | $143 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 52 | $180 |
| 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'SG2211 | 25 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 288 | 61 |
| Letrozole | 181 | 51 |
| Prednisone | 113 | 17 |
| Apixabanbrand: Eliquis | 111 | 24 |
| Ondansetron Hcl | 94 | 45 |
| Lorazepam | 92 | 22 |
| Gabapentin | 88 | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-23
- Last updated
- 2014-04-10
Frequently asked questions
- What is Timothy Johnson's NPI number?
- Timothy Johnson's National Provider Identifier (NPI) is 1801879762, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Johnson's specialty?
- Timothy Johnson is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Johnson located?
- Timothy Johnson's practice location on file with NPPES is 271 Carew Street, Springfield, MA 01104.
- What is Timothy Johnson's phone number?
- The practice phone number listed in the NPPES registry for Timothy Johnson is (413) 748-7370.
- Does Timothy Johnson accept Medicare?
- Timothy Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Johnson's NPI active?
- Yes — Timothy Johnson's NPI (1801879762) is active in the NPPES registry as of the last update on 2014-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.