David Hellmann, M.D.
NPI 1346290400 · Rheumatology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Hellmann, M.D. is a Rheumatology Physician provider in Baltimore, MD (NPI 1346290400).
Provider details
- NPI number
- 1346290400
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D33746 (MD)
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
171 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 171 | $182 |
Typical Medicare-allowed amounts for these services range $182–$182 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 121 | 29 |
| Methotrexate Sodiumbrand: Methotrexate | 38 | — |
| Alendronate Sodium | 21 | — |
| Atorvastatin Calcium | 20 | — |
| Celecoxib | 16 | — |
| Tocilizumabbrand: Actemra | 12 | — |
| Adalimumabbrand: Humira Pen | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-11
- Last updated
- 2013-02-07
Frequently asked questions
- What is David Hellmann's NPI number?
- David Hellmann's National Provider Identifier (NPI) is 1346290400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Hellmann's specialty?
- David Hellmann is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is David Hellmann located?
- David Hellmann's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is David Hellmann's phone number?
- The practice phone number listed in the NPPES registry for David Hellmann is (410) 955-3052.
- Does David Hellmann accept Medicare?
- David Hellmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Hellmann's NPI active?
- Yes — David Hellmann's NPI (1346290400) is active in the NPPES registry as of the last update on 2013-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.