Active NPI 1134426208 Individual Practitioner Female Practitioner

Dr. Heather Fleharty Warren , MD

Surgery • Redding, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Heather Warren, MD is a certified Surgery practicing in Redding, CA. With approximately 18 years of clinical experience since graduating from Stanford University School Of Medicine in 2008, Dr. Warren delivers high-quality medical care to the local community at 2175 ROSALINE AVE.

Dr. Warren maintains professional affiliations with Redding Critical Care Medical Group, Inc., Enloe Medical Center and accepts Medicare assignment.

Frequently performed procedures and clinical services include critical care, first, initial hospital care with straightforward or low-level medical decision making, if using time, at least, subsequent hospital care with moderate levelof medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2175 Rosaline Ave

Redding, CA 960012549

Telephone 5302256000

Associated Practice Facility / Clinic

🏢 Mercy Surgery Center, Lp Facility NPI 1932102498

Medicare Profile & Education

Medical School

Stanford University School Of Medicine

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Redding, CA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs -6.7 yrs vs City Avg

City Avg: 24.7 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

15 Specialists

Practicing in Redding, CA (3346 Statewide)

Telehealth Adoption Rate

33.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

62.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Warren (18 Years) 18 Yrs

Redding Specialty Average (24.7 Years) 24.7 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
99291 Critical care, first 30-74 minutes	224	126	$831.16	$202.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	56	56	$211.59	$133.57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	47	36	$191.60	$79.34
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	28	20	$314.57	$116.07
47562 Removal of gallbladder using an endoscope	24	24	$1440.00	$644.30
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	18	$116.32	$49.52
99292 Critical care, each additional 30 minutes	15	12	$356.20	$103.73
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	12	12	$404.50	$134.03
36620 Insertion of artery tube for blood sampling or infusion through skin	11	11	$127.91	$42.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	444	230	$858.80	$212.61
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	64	52	$308.88	$120.08
99292 Critical care, each additional 30 minutes	56	43	$367.61	$106.90
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	51	51	$248.90	$132.06
36620 Insertion of artery tube for blood sampling or infusion through skin	31	31	$132.61	$43.90
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	26	23	$191.62	$80.26
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	23	22	$556.17	$82.92
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	23	16	$160.13	$59.14
76937 Ultrasonic guidance for blood vessel access	20	19	$45.00	$13.97
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	15	$113.53	$50.02
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	15	15	$425.00	$138.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	346	193	$684.64	$218.67
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	129	83	$219.21	$100.55
99292 Critical care, each additional 30 minutes	123	91	$313.54	$103.97
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$339.00	$116.55
99213 Established patient office or other outpatient visit, typically 15 minutes	25	23	$229.00	$92.60
36620 Insertion of artery tube for blood sampling or infusion through skin	17	17	$135.00	$44.60
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	17	17	$499.82	$191.50
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	17	17	$514.71	$80.91
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$515.00	$173.01
76937 Ultrasonic guidance for blood vessel access	17	17	$42.35	$13.24
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	12	$191.25	$72.41
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	14	$139.00	$57.81
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	15	15	$362.00	$133.36
47562 Removal of gallbladder using an endoscope	12	12	$2101.80	$616.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	589	273	$386.94	$223.80
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	193	116	$158.11	$105.65
99292 Critical care, each additional 30 minutes	87	66	$203.51	$112.41
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	55	37	$153.00	$73.61
99213 Established patient office or other outpatient visit, typically 15 minutes	39	32	$229.00	$95.87
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$339.00	$115.51
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	28	28	$438.14	$205.08
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	22	$139.00	$59.41
36620 Insertion of artery tube for blood sampling or infusion through skin	25	25	$135.00	$45.38
99239 Hospital discharge day management, more than 30 minutes	25	25	$180.00	$109.29
76937 Ultrasonic guidance for blood vessel access	24	24	$40.00	$14.22
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	24	24	$350.00	$86.13
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$515.00	$175.43
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	16	15	$290.00	$143.99
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$357.81	$139.19
47562 Removal of gallbladder using an endoscope	13	13	$2065.29	$677.75
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$339.00	$136.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	469	207	$399.16	$227.72
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	111	80	$164.11	$107.82
99292 Critical care, each additional 30 minutes	67	50	$197.76	$114.07
99231 Follow-up hospital inpatient care per day, typically 15 minutes	53	32	$111.49	$40.85
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	41	41	$414.51	$142.64
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$339.00	$113.18
99221 Initial hospital inpatient care per day, typically 30 minutes	36	36	$314.00	$105.51
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	24	16	$190.00	$75.18
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	24	24	$531.58	$209.85
99213 Established patient office or other outpatient visit, typically 15 minutes	23	20	$229.00	$79.09
47562 Removal of gallbladder using an endoscope	19	19	$2076.82	$685.67
36620 Insertion of artery tube for blood sampling or infusion through skin	17	17	$136.47	$46.01
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$515.00	$171.71
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	14	$139.00	$48.18
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	15	14	$339.00	$115.01
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	13	13	$380.31	$87.92
99202 New patient office or other outpatient visit, typically 20 minutes	12	12	$236.00	$80.19
43246 Insertion of stomach tube using a flexible endoscope	12	11	$610.50	$174.01
99441 Telephone medical discussion with physician, 5-10 minutes	11	11	$64.73	$48.18
76937 Ultrasonic guidance for blood vessel access	11	11	$40.00	$14.92
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	11	11	$290.00	$146.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	371	234	$390.10	$223.88
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	113	82	$182.34	$105.57
99292 Critical care, each additional 30 minutes	98	74	$196.89	$112.19
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$515.00	$169.94
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	44	43	$405.45	$139.71
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	43	22	$219.42	$74.44
99231 Follow-up hospital inpatient care per day, typically 15 minutes	42	25	$117.00	$40.17
99213 Established patient office or other outpatient visit, typically 15 minutes	38	28	$229.00	$77.44
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$339.00	$112.29
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	30	$339.00	$113.25
99221 Initial hospital inpatient care per day, typically 30 minutes	30	29	$314.00	$103.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	25	24	$535.48	$206.45
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	15	$139.00	$47.29
43246 Insertion of stomach tube using a flexible endoscope	17	17	$643.18	$190.09
76937 Ultrasonic guidance for blood vessel access	14	14	$40.00	$14.70
47562 Removal of gallbladder using an endoscope	14	14	$2063.06	$669.45
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	13	13	$350.00	$86.44
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	11	11	$290.00	$142.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	314	184	$389.52	$222.60
99292 Critical care, each additional 30 minutes	91	64	$199.07	$111.34
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	88	66	$185.59	$105.88
99213 Established patient office or other outpatient visit, typically 15 minutes	46	38	$229.00	$75.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$515.00	$168.47
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	34	34	$412.35	$138.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$339.00	$110.72
99231 Follow-up hospital inpatient care per day, typically 15 minutes	24	15	$111.67	$39.68
99221 Initial hospital inpatient care per day, typically 30 minutes	22	22	$314.00	$102.07
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	20	20	$290.00	$136.42
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	15	$339.00	$111.28
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	18	18	$573.33	$205.73
47562 Removal of gallbladder using an endoscope	17	17	$2057.93	$557.61
36620 Insertion of artery tube for blood sampling or infusion through skin	14	14	$138.57	$44.95
43246 Insertion of stomach tube using a flexible endoscope	13	13	$629.92	$167.13
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	13	13	$410.62	$100.31
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	11	$139.00	$45.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	386	228	$388.70	$280.34
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	128	88	$183.98	$126.76
99292 Critical care, each additional 30 minutes	121	73	$198.06	$140.51
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	55	54	$592.56	$208.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$515.00	$165.73
99213 Established patient office or other outpatient visit, typically 15 minutes	38	33	$229.00	$74.25
99231 Follow-up hospital inpatient care per day, typically 15 minutes	36	21	$119.44	$39.48
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	34	34	$339.00	$109.75
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	27	27	$350.00	$153.26
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	26	$339.00	$109.38
31500 Emergent insertion of breathing tube into windpipe cartilage using an endoscope	26	25	$290.00	$178.64
76937 Ultrasonic guidance for blood vessel access	23	23	$40.00	$18.34
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	20	11	$207.00	$75.27
36620 Insertion of artery tube for blood sampling or infusion through skin	19	18	$136.32	$64.26
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$413.68	$138.63
47562 Removal of gallbladder using an endoscope	15	15	$2061.12	$653.46
99238 Hospital discharge day management, 30 minutes or less	14	14	$174.86	$84.27
99239 Hospital discharge day management, more than 30 minutes	12	12	$180.00	$137.32

Medical Specialties & State Licenses

CMS Verified: 2026-04-08

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CA A113292

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.

Surgery - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

State License CA A113292

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Hospital & Practice Group Affiliations

Enloe Medical Center

1600 Esplanade, Chico, CA 959263369

Phone: 5303324470

Enloe Medical Center

251 Cohasset Rd, Chico, CA 959262241

Phone: 5303324530

Redding Critical Care Medical Group, Inc.

2175 Rosaline Ave, Redding, CA 960012549

Phone: 5302256000

Secondary Practice Locations

1600 Esplanade

Chico, CA 959263369

Phone: 5303324470

1531 Esplanade

Chico, CA 959263310

Phone: 5303327300

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. John Stewart , MD

Anesthesiology

NPI 1013016922

Doctor of Medicine (M.D.)

Carl Tjerandsen , PA

Physician Assistant

NPI 1023044427

Physician Assistant

Joseph Tippetts , PA-C

Physician Assistant

NPI 1053945253

Physician Assistant (Certified)

Dr. Jarred Anderson , DO

Emergency Medicine

NPI 1063902104

Doctor of Osteopathic Medicine (D.O.)

Justin Shannon , NP

Nurse Practitioner

NPI 1093745655

Nurse Practitioner

Dr. Analucia Lamkins , MD

Hospitalist

NPI 1114586401

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location April 08, 2026

Registered at 2175 ROSALINE AVE, REDDING, CA 960012549 (Tel: 5302256000)

📍

Updated Business Mailing Address April 08, 2026

Registered at PO BOX 991844, REDDING, CA 960991844 (Tel: 5302469806)

✅

NPI Profile Active April 13, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location April 13, 2016

Registered at 2656 EDITH AVE STE B, REDDING, CA 96001 (Tel: 5302442882)

📍

Updated Business Mailing Address April 13, 2016

Registered at 2656 EDITH AVE STE B, REDDING, CA 96001 (Tel: 5302442882)

👤

Provider Name / Credentials Updated April 13, 2016

Recorded as HEATHER WARREN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 13, 2016

Surgery (License #A113292 in CA)

🟢

Initial NPI Registration & Enumeration February 24, 2011

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Heather Warren. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1134426208

Entity Type:

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

Enumeration Date: February 24, 2011

Last Update: April 08, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 991844

Redding, CA 960991844

Phone: 5302469806

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.