Frederick Pfalzgraf, M.D.
NPI 1659385581 · Rheumatology Physician · Herrin, IL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Pfalzgraf, M.D. is a Rheumatology Physician provider in Herrin, IL (NPI 1659385581).
Provider details
- NPI number
- 1659385581
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036102694 (IL)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
207 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 188 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $92 |
Typical Medicare-allowed amounts for these services range $63–$92 (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 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 631 | 131 |
| Prednisone | 582 | 134 |
| Hydroxychloroquine Sulfate | 408 | 76 |
| Leflunomide | 225 | 52 |
| Duloxetine Hcl | 150 | 28 |
| Celecoxib | 115 | 28 |
| Gabapentin | 100 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,194 across 83 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
Additional practice locations (1)
- 207 S Burns AveSparta, IL 62286-1867Phone: (618) 443-3084Fax: (618) 443-1348
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2020-06-24
- Certified
- 2020-06-24
Frequently asked questions
- What is Frederick Pfalzgraf's NPI number?
- Frederick Pfalzgraf's National Provider Identifier (NPI) is 1659385581, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Pfalzgraf's specialty?
- Frederick Pfalzgraf is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Pfalzgraf located?
- Frederick Pfalzgraf's practice location on file with NPPES is 408 Lincoln Dr, Herrin, IL 62948-3790.
- What is Frederick Pfalzgraf's phone number?
- The practice phone number listed in the NPPES registry for Frederick Pfalzgraf is (618) 993-1408.
- Does Frederick Pfalzgraf accept Medicare?
- Frederick Pfalzgraf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Pfalzgraf's NPI active?
- Yes — Frederick Pfalzgraf's NPI (1659385581) is active in the NPPES registry as of the last update on 2020-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.