Active NPI 1235375585 Individual Practitioner Male Practitioner

Dr. Cristin Razvan Opreanu , MD

Colon & Rectal Surgery • Lansing, MI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Cristin Opreanu, MD is a certified Colon & Rectal Surgery practicing in Lansing, MI. With approximately 23 years of clinical experience since completing medical education in 2003, Dr. Opreanu delivers high-quality medical care to the local community at 1627 LAKE LANSING RD STE 100.

Dr. Opreanu maintains professional affiliations with Edward W Sparrow Hospital Association, Troy Gastroenterology Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include diagnostic examination of the anus using an endoscope, new patient outpatient office visit, removal of polyps or growths of large bowel using an endoscope with mechanical snare. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1627 Lake Lansing Rd Ste 100

Lansing, MI 489123788

Telephone 5173720500

Fax 5174823220

Associated Practice Facility / Clinic

🏢 Daniel C Coffey Md Facility NPI 1326214339

Medicare Profile & Education

Medical School

Other

Graduation Year

2003

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in Lansing, MI

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

23 Yrs +0.7 yrs vs City Avg

City Avg: 22.3 Yrs

State Avg: 24.3 Yrs

Regional Practice Density

6 Specialists

Practicing in Lansing, MI (94 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

61.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Opreanu (23 Years) 23 Yrs

Lansing Specialty Average (22.3 Years) 22.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
46600 Diagnostic examination of the anus using an endoscope	45	44	$175.00	$107.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	44	44	$175.00	$103.92
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	40	40	$725.00	$240.94
99213 Established patient office or other outpatient visit, typically 15 minutes	38	34	$142.00	$84.74
45380 Biopsy of large bowel using an endoscope	25	25	$685.00	$120.16
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$262.00	$159.36
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	22	19	$211.00	$124.87
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	11	11	$497.36	$158.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	56	55	$714.32	$239.59
45380 Biopsy of large bowel using an endoscope	43	43	$661.47	$134.30
99213 Established patient office or other outpatient visit, typically 15 minutes	39	32	$142.00	$84.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$175.00	$107.18
46600 Diagnostic examination of the anus using an endoscope	34	31	$170.47	$111.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$262.00	$159.45
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	16	$201.00	$121.60
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	15	$211.00	$125.88
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	14	14	$494.00	$176.27
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	12	12	$493.00	$168.58

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$175.00	$107.63
99213 Established patient office or other outpatient visit, typically 15 minutes	43	32	$142.00	$87.16
46600 Diagnostic examination of the anus using an endoscope	27	27	$152.22	$112.15
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	23	23	$699.00	$250.69
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	22	12	$111.00	$69.81
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$262.00	$163.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	18	$201.00	$124.79
45380 Biopsy of large bowel using an endoscope	19	19	$639.00	$110.80
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$211.00	$132.85
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	11	11	$699.00	$251.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	49	34	$111.80	$88.23
46600 Diagnostic examination of the anus using an endoscope	39	36	$126.87	$111.16
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$151.32	$110.12
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	35	18	$96.14	$70.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	29	$162.87	$123.97
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	24	24	$647.33	$245.59
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	17	$198.25	$134.16
46221 Removal of external hemorrhoids by rubber banding	20	11	$456.85	$284.67
45380 Biopsy of large bowel using an endoscope	14	14	$584.00	$113.96
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$256.33	$186.26
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	12	12	$647.33	$253.19
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$229.27	$165.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
46600 Diagnostic examination of the anus using an endoscope	65	55	$138.77	$99.97
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	52	52	$125.00	$104.63
99213 Established patient office or other outpatient visit, typically 15 minutes	51	33	$85.00	$71.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	46	37	$125.00	$104.28
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	34	17	$85.00	$72.46
46221 Removal of external hemorrhoids by rubber banding	23	14	$425.00	$269.58
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$190.00	$162.49
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$160.00	$132.43
45380 Biopsy of large bowel using an endoscope	15	15	$485.00	$167.78
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	13	12	$575.00	$246.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
46600 Diagnostic examination of the anus using an endoscope	76	67	$175.00	$86.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	67	67	$200.00	$101.69
99213 Established patient office or other outpatient visit, typically 15 minutes	60	51	$140.00	$70.01
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	46	38	$185.00	$102.48
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	40	39	$215.00	$132.89
46221 Removal of external hemorrhoids by rubber banding	35	22	$425.00	$262.66
99231 Follow-up hospital inpatient care per day, typically 15 minutes	34	17	$120.00	$38.98
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	32	30	$980.00	$260.92
45380 Biopsy of large bowel using an endoscope	32	32	$890.00	$205.74
45378 Diagnostic exam of large bowel using a flexible endoscope	27	26	$775.00	$182.39
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	26	26	$250.00	$159.47
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	21	13	$135.00	$71.92
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	14	$235.00	$141.72
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	12	12	$775.00	$188.68
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$310.00	$199.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	72	72	$187.56	$102.49
99213 Established patient office or other outpatient visit, typically 15 minutes	68	51	$131.59	$69.21
46600 Diagnostic examination of the anus using an endoscope	62	59	$162.39	$84.54
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	50	48	$964.80	$252.50
45380 Biopsy of large bowel using an endoscope	43	43	$880.30	$145.07
45378 Diagnostic exam of large bowel using a flexible endoscope	36	36	$775.00	$188.15
99231 Follow-up hospital inpatient care per day, typically 15 minutes	34	18	$116.06	$38.48
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	32	28	$174.25	$103.15
46221 Removal of external hemorrhoids by rubber banding	30	18	$420.33	$258.70
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	28	25	$213.86	$134.11
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	27	27	$245.56	$158.79
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	12	$221.07	$132.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	50	20	$96.00	$70.41
46600 Diagnostic examination of the anus using an endoscope	44	39	$129.00	$83.67
99213 Established patient office or other outpatient visit, typically 15 minutes	44	36	$96.00	$69.92
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	43	43	$144.00	$103.58
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	36	$142.00	$103.00
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	23	23	$691.52	$249.39
46221 Removal of external hemorrhoids by rubber banding	18	14	$390.00	$247.31
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	16	15	$593.00	$168.88
45380 Biopsy of large bowel using an endoscope	15	15	$637.93	$177.92
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$220.00	$157.89
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	13	$196.00	$139.02
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	13	13	$778.38	$257.46
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$268.00	$197.74

Medical Specialties & State Licenses

CMS Verified: 2026-05-28

Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License MI 4301093541

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Surgery

NUCC Taxonomy Code: 208600000X

State License MI 4301093541

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Hospital & Practice Group Affiliations

Troy Gastroenterology Pc

1627 Lake Lansing Rd, Lansing, MI 489123788

Phone: 5173321200

Troy Gastroenterology Pc

1650 Ramblewood Dr, East Lansing, MI 488237396

Phone: 5173321200

Troy Gastroenterology Pc

321 E Harris St, Charlotte, MI 488131629

Phone: 5173321200

Edward W Sparrow Hospital Association

2909 E Grand River Ave, Lansing, MI 489124335

Phone: 5173645388

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

5 Associated Practitioners

Dr. Mark Menning , MD

Surgery

NPI 1598749194

Doctor of Medicine (M.D.)

Dr. Daniel Coffey , MD

Colon & Rectal Surgery

NPI 1710961305

Doctor of Medicine (M.D.)

Dr. Albert Moeller , MD

Colon & Rectal Surgery

NPI 1750365359

Doctor of Medicine (M.D.)

Dr. Lucas Julien , MD

Colon & Rectal Surgery

NPI 1821213315

Doctor of Medicine (M.D.)

Robert Brickner , MC

Colon & Rectal Surgery

NPI 1891779401

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

15 Historical Events

📍

Updated Practice Location October 28, 2019

Registered at 1627 LAKE LANSING RD STE 100, LANSING, MI 489123788 (Tel: 5173720500)

📍

Updated Business Mailing Address October 28, 2019

Registered at 1627 LAKE LANSING RD STE 100, LANSING, MI 489123788 (Tel: 5173720500)

📍

Updated Business Mailing Address March 17, 2018

Registered at 737 N GRAND AVE, LANSING, MI 489065160 (Tel: 5173720500)

📍

Updated Business Mailing Address March 09, 2018

Registered at 737 N GRAND AVE, LANSING, MI 489065160 (Tel: 5173720500)

✅

NPI Profile Active January 04, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location January 04, 2018

Registered at 1200 E MICHIGAN AVE STE 655, LANSING, MI 489121837 (Tel: 5172672462)

📍

Updated Business Mailing Address January 04, 2018

Registered at 1200 E MICHIGAN AVE STE 655, LANSING, MI 489121837 (Tel: 5172672462)

👤

Provider Name / Credentials Updated January 04, 2018

Recorded as CRISTIN OPREANU, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 04, 2018

Surgery (License #4301093541 in MI)

✅

NPI Profile Active December 16, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location December 16, 2008

Registered at 1200 E MICHIGAN AVE STE 655, LANSING, MI 489121837 (Tel: 5172672462)

📍

Updated Business Mailing Address December 16, 2008

Registered at 1200 E MICHIGAN AVE STE 655, LANSING, MI 489121837 (Tel: 5172672462)

👤

Provider Name / Credentials Updated December 16, 2008

Recorded as CRISTIN OPREANU, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 16, 2008

Surgery (License #1425276 in MI)

🟢

Initial NPI Registration & Enumeration December 16, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1235375585

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: December 16, 2008

Last Update: May 28, 2026

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

1627 Lake Lansing Rd Ste 100

Lansing, MI 489123788

Phone: 5173720500

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.