Randy Janczyk, MD
NPI 1811988058 · Surgery Physician · Royal Oak, MI
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Randy Janczyk, MD is a Surgery Physician provider in Royal Oak, MI (NPI 1811988058).
Provider details
- NPI number
- 1811988058
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301067765 (MI)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
568 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 219 | $119 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 128 | $79 |
| Critical Care, First 30-74 Minutes99291 | 53 | $216 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 32 | $169 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 31 | $113 |
| Repair of Groin Hernia Using an Endoscope49650 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Oxycodone Hcl | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,055 across 11 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 (3)
- 3601 W 13 Mile RdRoyal Oak, MI 48073-6712Phone: (248) 898-2800Fax: (248) 898-2898
- 3535 W 13 Mile Rd Ste LlRoyal Oak, MI 48073-6770Phone: (248) 551-3000Fax: (248) 551-4784
- 44199 Dequindre Rd Ste 315Troy, MI 48085-1128Phone: (248) 964-3600Fax: (248) 964-1188
Registry dates
- Enumerated
- 2005-11-04
- Last updated
- 2023-06-13
- Certified
- 2023-06-13
Frequently asked questions
- What is Randy Janczyk's NPI number?
- Randy Janczyk's National Provider Identifier (NPI) is 1811988058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Randy Janczyk's specialty?
- Randy Janczyk is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Randy Janczyk located?
- Randy Janczyk's practice location on file with NPPES is 3535 W 13 Mile Rd, Royal Oak, MI 48073.
- What is Randy Janczyk's phone number?
- The practice phone number listed in the NPPES registry for Randy Janczyk is (248) 551-9090.
- Does Randy Janczyk accept Medicare?
- Randy Janczyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Randy Janczyk's NPI active?
- Yes — Randy Janczyk's NPI (1811988058) is active in the NPPES registry as of the last update on 2023-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.