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Edit this profileWhere to find Randy J. Janczyk, MD
- Royal Oak location main office
3535 W 13 Mile Rd, Ste 204, Royal Oak, MI 48073 - Royal Oak location
3535 W 13 Mile Rd Ste Ll, Royal Oak, MI 48073 - Troy location
44199 Dequindre Rd Ste 315, Troy, MI 48085 - Royal Oak location
3601 W 13 Mile Rd, Royal Oak, MI 48073
About Dr. Janczyk
Randy J. Janczyk, MD is a healthcare provider in Royal Oak, MI specializing in surgery. Randy trained at University of Texas Medical School at San Antonio, graduating in 1995. According to Medicare claims data, Randy cared for 346 Medicare patients across 568 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and critical care, first 30-74 minutes. This provider record is associated with NPI 1811988058.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (248) 551-9090
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
3535 W 13 MILE RD STE 204
Royal Oak, MI 48073
3535 W 13 Mile Rd Ste Ll
Royal Oak, MI 48073
44199 Dequindre Rd Ste 315
Troy, MI 48085
3601 W 13 Mile Rd
Royal Oak, MI 48073
Conditions Commonly Evaluated or Treated
Within Surgery (Unspecified) generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Breast conditions
Cancer
- Colon cancer
- Esophageal cancer
- Liver cancer
- Neuroendocrine Tumors
- Pancreatic cancer
- Soft-tissue sarcoma
- Stomach cancer
- Thyroid cancer
Colorectal
Digestive
- Abdominal adhesions
- Acid reflux
- Acute pancreatitis
- Bowel obstruction
- Colon polyps
- Diverticulitis
- Gastroparesis
- Peptic ulcer disease
Digestive & blood
Digestive health
- Crohn's disease
- Fecal incontinence
- Perforated bowel
- Severe chronic constipation
- Swallowing difficulties
- Ulcerative colitis
Endocrine
Infections
Lumps & bumps
Lymphatic
Minor surgery
Skin & scars
Skin & soft tissue
Skin cancer
Vascular
Weight & metabolism
Wound care
Wounds
Procedures & services
Endocrine
Vascular
- Blood Clot Removal Surgery
- Carotid endarterectomy
- Leg bypass surgery
- Varicose vein removal
Wounds
Most searched procedures
Abdominal
Abdominal surgery
Bariatric
Breast surgery
Cancer
Cancer surgery
Colorectal
- Anal fistula surgery
- Anal Sphincter Repair
- Colon resection
- Hemorrhoid removal
- Ostomy reversal
- Ostomy surgery
- Rectal prolapse repair
- Surgery for chronic anal fissure
Consultations
Diagnostic
Digestive
Digestive health
Infections
Minor surgery
- Fishhook or embedded splinter removal
- Ingrown toenail removal
Post-op care
Reconstruction
Skin & soft tissue
- Cyst Removal
- Lipoma removal
- Mole removal
- Pilonidal cyst surgery
- Scar revision surgery
- Skin Tag Removal
Skin cancer
Vascular & cancer
Weight loss
Wound care
Procedures Most Often Billed to Medicare
568 services · 346 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Repair of groin hernia using an endoscope | Procedure | 49650 |
23 | More often than most peers in Surgery |
| Creation of muscle graft to trunk | Procedure | 15734 |
22 | Less often than most peers in Surgery |
| Initial repair of entrapped hernia of abdomen, more than 10 cm in length | Procedure | 49596 |
13 | As often as other peers in Surgery |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
219 | More than most peers in Surgery |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
128 | More often than most peers in Surgery |
| Critical care, first 30-74 minutes | Office visit | 99291 |
53 | As often as other peers in Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
32 | As often as other peers in Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
31 | As often as other peers in Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
22 | Less often than most peers in Surgery |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
14 | Less often than most peers in Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other general surgeons at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other general surgeons in Royal Oak 7
Same specialty, same city.
Trained at University of Texas Medical School at San Antonio 8
Other providers in the same specialty who trained at the same institution.
Class of 1995 at University of Texas Medical School at San Antonio 8
Providers who graduated from the same medical school in the same year.
Also performs Repair of groin hernia using an endoscope 7
Providers in MI who bill this service to Medicare most often.
Common questions
What does Dr. Janczyk specialize in?
Dr. Janczyk is a general surgeon in Royal Oak, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Surgery”.
NPI registry
Where is Dr. Janczyk located?
Dr. Janczyk is listed at 3535 W 13 Mile Rd Ste 204, Royal Oak, MI 48073. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Janczyk's phone number?
The number on file is (248) 551-9090. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Janczyk's NPI number?
Dr. Janczyk's National Provider Identifier is 1811988058. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Janczyk go to medical school?
Dr. Janczyk attended University of Texas Medical School at San Antonio, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Janczyk been practicing?
Dr. Janczyk has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Janczyk do most often?
According to Medicare billing data, Dr. Janczyk performs procedures including repair of groin hernia using an endoscope, creation of muscle graft to trunk and initial repair of entrapped hernia of abdomen, more than 10 cm in length, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Janczyk confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Janczyk. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.