Stanley Allen, M.D.
NPI 1285631127 · Internal Medicine Physician · Springfield, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanley Allen, M.D. is a Internal Medicine Physician provider in Springfield, IL (NPI 1285631127).
Provider details
- NPI number
- 1285631127
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036100203 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
461 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 | 192 | $87 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 115 | $125 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 55 | $50 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 40 | $3 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 | 23 | $94 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 21 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 107 | 104 |
| Doxycycline Monohydrate | 102 | 101 |
| Cefuroxime Axetilbrand: Cefuroxime | 67 | 66 |
| Azithromycin | 56 | 54 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 48 | 47 |
| Clindamycin Hcl | 35 | 33 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-07
- Last updated
- 2012-12-17
Frequently asked questions
- What is Stanley Allen's NPI number?
- Stanley Allen's National Provider Identifier (NPI) is 1285631127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Allen's specialty?
- Stanley Allen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Allen located?
- Stanley Allen's practice location on file with NPPES is 1025 S 6th St, Springfield, IL 62703-2403.
- What is Stanley Allen's phone number?
- The practice phone number listed in the NPPES registry for Stanley Allen is (217) 528-7541.
- Does Stanley Allen accept Medicare?
- Stanley Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanley Allen's NPI active?
- Yes — Stanley Allen's NPI (1285631127) is active in the NPPES registry as of the last update on 2012-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.