Active NPI 1487815197 Individual Practitioner Male Practitioner

Dr. David Diep , DO

Surgery • Chelsea, MI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. David Diep, DO is a certified Surgery practicing in Chelsea, MI. With approximately 18 years of clinical experience since graduating from Nova Southeastern Univ College Of Dental Medicine in 2008, Dr. Diep delivers high-quality medical care to the local community at 14650 E OLD US HIGHWAY 12.

Dr. Diep is affiliated with Iha Health Services Corporation and accepts Medicare assignment.

Frequently performed procedures and clinical services include removal of polyps or growths of large bowel using an endoscope with mechanical snare, initial hospital care with straightforward or low-level medical decision making, if using time, at least, follow-up hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

14650 E Old Us Highway 12
Suite 303

Chelsea, MI 48118

Telephone 7344754177

Fax 7344753520

Associated Practice Facility / Clinic

🏢 Jona K Gill Md Pc Facility NPI 1457366197

Medicare Profile & Education

Medical School

Nova Southeastern Univ College Of Dental Medicine

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Chelsea, MI

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs -2.9 yrs vs City Avg

City Avg: 20.9 Yrs

State Avg: 25.8 Yrs

Regional Practice Density

11 Specialists

Practicing in Chelsea, MI (1479 Statewide)

Telehealth Adoption Rate

27.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

75.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Diep (18 Years) 18 Yrs

Chelsea Specialty Average (20.9 Years) 20.9 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
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	53	52	$1076.00	$244.69
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	52	51	$239.00	$129.75
99231 Follow-up hospital inpatient care per day, typically 15 minutes	38	26	$75.00	$49.12
45380 Biopsy of large bowel using an endoscope	28	28	$1309.00	$146.11
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	25	25	$958.00	$93.56
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$315.00	$165.16
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	21	15	$79.00	$55.19
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$127.00	$89.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	16	$179.00	$126.10
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	15	15	$2678.00	$314.34
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	15	15	$49.00	$17.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$167.00	$109.07
47562 Removal of gallbladder using an endoscope	11	11	$1708.00	$642.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	74	73	$1076.00	$241.68
45380 Biopsy of large bowel using an endoscope	46	46	$1309.00	$132.90
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	36	36	$239.00	$128.23
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	23	22	$958.00	$94.54
99231 Follow-up hospital inpatient care per day, typically 15 minutes	16	15	$75.00	$49.08
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	13	$75.00	$54.42
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	14	14	$688.36	$157.88
99213 Established patient office or other outpatient visit, typically 15 minutes	13	13	$112.00	$87.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$315.00	$161.98
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$165.00	$123.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	57	56	$1076.00	$244.75
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	45	45	$315.00	$163.29
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	40	27	$127.00	$69.95
45380 Biopsy of large bowel using an endoscope	36	36	$1309.00	$90.89
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	31	29	$239.00	$132.45
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	25	$75.00	$54.81
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	24	$165.00	$121.57
99213 Established patient office or other outpatient visit, typically 15 minutes	22	21	$112.00	$88.47
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	21	21	$958.00	$92.05
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	16	$75.00	$37.89
11042 Removal of skin and tissue, 20.0 sq cm or less	19	16	$215.00	$57.59
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	13	13	$2678.00	$330.25
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	11	11	$49.00	$18.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$315.00	$159.90
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	45	45	$1076.00	$231.24
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	45	21	$127.00	$70.90
11042 Removal of skin and tissue, 20.0 sq cm or less	43	18	$215.00	$58.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	40	$165.00	$124.89
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	40	38	$239.00	$131.18
45380 Biopsy of large bowel using an endoscope	33	33	$1309.00	$146.48
99231 Follow-up hospital inpatient care per day, typically 15 minutes	32	23	$75.00	$37.87
99213 Established patient office or other outpatient visit, typically 15 minutes	31	29	$112.00	$89.45
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	27	27	$958.00	$98.41
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	21	19	$75.00	$54.76
99213 Established patient office or other outpatient visit, typically 15 minutes	18	15	$92.00	$67.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	41	39	$112.00	$72.36
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	36	35	$1076.00	$244.45
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	32	27	$75.00	$44.29
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	29	29	$958.00	$111.99
45380 Biopsy of large bowel using an endoscope	29	29	$1309.00	$146.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$210.00	$105.54
11042 Removal of skin and tissue, 20.0 sq cm or less	28	16	$215.00	$61.76
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	27	26	$239.00	$138.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$315.00	$162.86
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	19	$165.00	$106.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	74	73	$1076.00	$246.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	64	64	$186.64	$102.72
99213 Established patient office or other outpatient visit, typically 15 minutes	48	45	$105.75	$71.94
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	47	41	$70.32	$42.08
99231 Follow-up hospital inpatient care per day, typically 15 minutes	43	30	$75.00	$38.98
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	38	20	$65.00	$25.25
11042 Removal of skin and tissue, 20.0 sq cm or less	36	13	$215.00	$61.35
45380 Biopsy of large bowel using an endoscope	32	32	$1309.00	$152.32
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	31	31	$958.00	$112.68
99221 Initial hospital inpatient care per day, typically 30 minutes	30	30	$173.27	$100.47
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	23	23	$824.00	$184.89
99202 New patient office or other outpatient visit, typically 20 minutes	22	22	$135.00	$72.13
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	17	$232.79	$129.21
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$146.50	$105.49
99213 Established patient office or other outpatient visit, typically 15 minutes	14	11	$92.00	$50.49
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$298.43	$160.43
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	12	11	$824.00	$172.87
45378 Diagnostic exam of large bowel using a flexible endoscope	11	11	$824.00	$189.28
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	11	11	$122.91	$71.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	84	23	$92.00	$50.22
99213 Established patient office or other outpatient visit, typically 15 minutes	79	61	$92.00	$68.43
11042 Removal of skin and tissue, 20.0 sq cm or less	77	22	$215.00	$60.86
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	62	62	$145.00	$102.68
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	59	50	$65.00	$41.52
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	47	44	$958.00	$104.16
99231 Follow-up hospital inpatient care per day, typically 15 minutes	45	25	$75.00	$38.50
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	43	43	$1076.00	$245.64
99221 Initial hospital inpatient care per day, typically 30 minutes	38	36	$161.00	$99.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	37	36	$128.00	$103.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	31	21	$65.00	$24.99
45380 Biopsy of large bowel using an endoscope	29	29	$1309.00	$171.77
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	23	23	$824.00	$170.83
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	20	13	$118.00	$71.50
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	17	17	$824.00	$181.46
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$199.00	$159.23
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	12	$128.00	$77.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	99	70	$65.00	$41.33
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	94	26	$65.00	$24.85
11042 Removal of skin and tissue, 20.0 sq cm or less	61	25	$214.44	$58.65
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	58	58	$145.00	$102.29
99231 Follow-up hospital inpatient care per day, typically 15 minutes	56	27	$75.00	$38.35
99213 Established patient office or other outpatient visit, typically 15 minutes	39	35	$92.00	$69.92
99213 Established patient office or other outpatient visit, typically 15 minutes	33	19	$92.00	$49.69
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	30	30	$824.00	$180.10
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	29	29	$958.00	$113.49
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	28	28	$1076.00	$257.36
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	24	24	$218.00	$129.21
97597 Removal of tissue from wound, 20.0 sq cm or less	21	14	$138.86	$22.93
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	18	11	$118.00	$70.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$128.00	$98.66
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	13	13	$824.00	$185.59
99221 Initial hospital inpatient care per day, typically 30 minutes	13	13	$161.00	$99.11
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$824.00	$187.29
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$319.00	$197.74
45380 Biopsy of large bowel using an endoscope	11	11	$1309.00	$133.67

Medical Specialties & State Licenses

CMS Verified: 2025-11-21

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License MI 5101017754

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

Iha Health Services Corporation

14650 E Old Us Hwy 12, Chelsea, MI 481181801

Iha Health Services Corporation

2305 Genoa Bus Park Dr, Brighton, MI 481147005

Iha Health Services Corporation

44428 Woodward Ave, Pontiac, MI 483415009

Phone: 7347128700

Iha Health Services Corporation

7575 Grand River Rd, Brighton, MI 481149309

Phone: 7347127255

Iha Health Services Corporation

14650 E Old Us Hwy 12, Chelsea, MI 481181804

Iha Health Services Corporation

775 S Main St, Chelsea, MI 481181383

Practice Associates & Co-Workers

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

10 Associated Practitioners

Abigail Lawinger , PA

Physician Assistant

NPI 1114751666

Physician Assistant

Danielle Berthold , NP

Nurse Practitioner

NPI 1144409905

Nurse Practitioner

Dr. Alicia Snider , MD

Surgery

NPI 1235426685

Doctor of Medicine (M.D.)

Dr. Jennifer Kulick , MD

Surgery

NPI 1265511851

Doctor of Medicine (M.D.)

Rida Ali , PA-C

Physician Assistant

NPI 1528861275

Physician Assistant (Certified)

Lisa Metler , PA-C

Physician Assistant

NPI 1548455744

Physician Assistant (Certified)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location November 21, 2025

Registered at 14650 E OLD US HIGHWAY 12, SUITE 303, CHELSEA, MI 48118 (Tel: 7344754177)

📍

Updated Business Mailing Address November 21, 2025

Registered at 24 FRANK LLOYD WRIGHT DRIVE, SUITE J2000, ANN ARBOR, MI 48105 (Tel: 7347476766)

👤

Provider Name / Credentials Updated November 21, 2025

Recorded as DAVID DIEP, DO

✅

NPI Profile Active June 24, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location June 24, 2008

Registered at 6245 INKSTER RD, GARDEN CITY, MI 481354001 (Tel: 7344213300)

📍

Updated Business Mailing Address June 24, 2008

Registered at 41706 W VILLAGE GREEN BLVD, APT 101, CANTON, MI 481873876 (Tel: 3528710199)

👤

Provider Name / Credentials Updated June 24, 2008

Recorded as DAVID DIEP, D.O.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 24, 2008

Surgery (License #5101017754 in MI)

🟢

Initial NPI Registration & Enumeration June 24, 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: 1487815197

Entity Type:

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

Enumeration Date: June 24, 2008

Last Update: November 21, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

24 Frank Lloyd Wright Drive, Suite J2000

Ann Arbor, MI 48105

Phone: 7347476766

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.