Joseph Lutt, M.D.
NPI 1023233707 · Rheumatology Physician · Boulder, CO
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Lutt, M.D. is a Rheumatology Physician provider in Boulder, CO (NPI 1023233707).
Provider details
- NPI number
- 1023233707
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47481 (CO)
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
2,093 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 560 | $128 |
| 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 | 555 | $16 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 275 | $9 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 174 | $73 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 139 | $14 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 207 | 84 |
| Allopurinol | 179 | 48 |
| Methotrexate Sodiumbrand: Methotrexate | 130 | 34 |
| Alendronate Sodium | 122 | 41 |
| Hydroxychloroquine Sulfate | 94 | 30 |
| Tramadol Hcl | 47 | — |
| Methylprednisolone | 47 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-16
- Last updated
- 2026-04-14
- Certified
- 2026-04-14
Frequently asked questions
- What is Joseph Lutt's NPI number?
- Joseph Lutt's National Provider Identifier (NPI) is 1023233707, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Lutt's specialty?
- Joseph Lutt is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Lutt located?
- Joseph Lutt's practice location on file with NPPES is 2503 Walnut St Ste 200, Boulder, CO 80302-5745.
- What is Joseph Lutt's phone number?
- The practice phone number listed in the NPPES registry for Joseph Lutt is (720) 494-4706.
- Does Joseph Lutt accept Medicare?
- Joseph Lutt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Lutt's NPI active?
- Yes — Joseph Lutt's NPI (1023233707) is active in the NPPES registry as of the last update on 2026-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.