Leonard Spishakoff, MD
NPI 1275597098 · Addiction Medicine (Psychiatry & Neurology) Physician · Romeoville, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Spishakoff, MD is a Addiction Medicine (Psychiatry & Neurology) Physician provider in Romeoville, IL (NPI 1275597098).
Provider details
- NPI number
- 1275597098
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 091578 (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 tenure25% of score
20 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
586 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 | 261 | $129 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 232 | $73 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 74 | $185 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 19 | $226 |
Typical Medicare-allowed amounts for these services range $73–$226 (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 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 257 | 28 |
| Gabapentin | 202 | 29 |
| Clonazepam | 174 | 18 |
| Buspirone Hcl | 167 | 35 |
| Mirtazapine | 152 | 41 |
| Quetiapine Fumarate | 131 | 31 |
| Duloxetine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,275 across 66 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
- 2006-04-17
- Last updated
- 2023-05-25
- Certified
- 2023-05-25
Frequently asked questions
- What is Leonard Spishakoff's NPI number?
- Leonard Spishakoff's National Provider Identifier (NPI) is 1275597098, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Spishakoff's specialty?
- Leonard Spishakoff is listed in the NPPES registry with a primary specialty of Addiction Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Spishakoff located?
- Leonard Spishakoff's practice location on file with NPPES is 1239 Windham Pkwy, Romeoville, IL 60446-1608.
- What is Leonard Spishakoff's phone number?
- The practice phone number listed in the NPPES registry for Leonard Spishakoff is (815) 942-6323.
- Does Leonard Spishakoff accept Medicare?
- Leonard Spishakoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Spishakoff's NPI active?
- Yes — Leonard Spishakoff's NPI (1275597098) is active in the NPPES registry as of the last update on 2023-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.