Keith Bernstein, MD
NPI 1447273727 · Rheumatology Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keith Bernstein, MD is a Rheumatology Physician provider in Chesterfield, MO (NPI 1447273727).
Provider details
- NPI number
- 1447273727
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R8J79 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,996 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 918 | $118 |
| 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 | 402 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 282 | $4 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 223 | $72 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 181 | $57 |
| Urinalysis, Manual Test |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 481 | 131 |
| Methotrexate Sodiumbrand: Methotrexate | 321 | 86 |
| Hydroxychloroquine Sulfate | 206 | 49 |
| Cyclobenzaprine Hcl | 195 | 62 |
| Atorvastatin Calcium | 177 | 50 |
| Levothyroxine Sodium | 172 | 43 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$898 across 42 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Keith Bernstein's NPI number?
- Keith Bernstein's National Provider Identifier (NPI) is 1447273727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Bernstein's specialty?
- Keith Bernstein is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Keith Bernstein located?
- Keith Bernstein's practice location on file with NPPES is 224 S Woods Mill Rd, Chesterfield, MO 63017.
- What is Keith Bernstein's phone number?
- The practice phone number listed in the NPPES registry for Keith Bernstein is (314) 878-6260.
- Does Keith Bernstein accept Medicare?
- Keith Bernstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keith Bernstein's NPI active?
- Yes — Keith Bernstein's NPI (1447273727) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.