Douglas Dier, MD
NPI 1548374382 · Rheumatology Physician · Rutland, VT
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Dier, MD is a Rheumatology Physician provider in Rutland, VT (NPI 1548374382).
Provider details
- NPI number
- 1548374382
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 042-0007797 (VT)
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
19 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
1,737 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 | 918 | $88 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 403 | $123 |
| 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 | 271 | $16 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 107 | $160 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 27 | $61 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 531 | 136 |
| Methotrexate Sodiumbrand: Methotrexate | 443 | 111 |
| Tizanidine Hcl | 327 | 94 |
| Prednisone | 268 | 113 |
| Diclofenac Sodium | 261 | 82 |
| Celecoxib | 246 | 58 |
| Naproxen | 240 | 68 |
| Allopurinol | 205 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2020-03-02
- Certified
- 2020-03-02
Frequently asked questions
- What is Douglas Dier's NPI number?
- Douglas Dier's National Provider Identifier (NPI) is 1548374382, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Dier's specialty?
- Douglas Dier is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Dier located?
- Douglas Dier's practice location on file with NPPES is 98 Allen St, Rutland, VT 05701-4592.
- What is Douglas Dier's phone number?
- The practice phone number listed in the NPPES registry for Douglas Dier is (802) 775-3374.
- Does Douglas Dier accept Medicare?
- Douglas Dier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Dier's NPI active?
- Yes — Douglas Dier's NPI (1548374382) is active in the NPPES registry as of the last update on 2020-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.