Active NPI 1508216458 Individual Practitioner Female Practitioner

Dr. Maxine Flame Warren , MD

Dermatology • Denver, CO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Maxine Warren, MD is a certified Dermatology practicing in Denver, CO. With approximately 10 years of clinical experience since graduating from Emory University School Of Medicine in 2016, Dr. Warren delivers high-quality medical care to the local community at 1375 E 19TH AVE.

Dr. Warren is affiliated with Dermatology Center Of The Rockies and accepts Medicare assignment.

Frequently performed procedures and clinical services include destruction of precancer skin growth, 2-14 growths, established patient outpatient office visit, destruction of skin growth. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1375 E 19th Ave

Denver, CO 802181114

Telephone 3038126410

Associated Practice Facility / Clinic

🏢 Saint Joseph Hospital, Inc Facility NPI 1417946021

Medicare Profile & Education

Medical School

Emory University School Of Medicine

Graduation Year

2016

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Dermatology in Denver, CO

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

10 Yrs -8.4 yrs vs City Avg

City Avg: 18.4 Yrs

State Avg: 19.3 Yrs

Regional Practice Density

48 Specialists

Practicing in Denver, CO (321 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

40.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Warren (10 Years) 10 Yrs

Denver Specialty Average (18.4 Years) 18.4 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
17003 Destruction of precancer skin growth, 2-14 growths	1,248	226	$10.40	$6.83
99213 Established patient office or other outpatient visit, typically 15 minutes	508	404	$138.96	$91.41
17000 Destruction of skin growth	409	328	$104.87	$49.39
17110 Destruction of up to 14 skin growths	383	306	$177.30	$113.07
11102 Tangential biopsy of single skin lesion	194	173	$155.77	$84.33
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	141	117	$195.92	$125.42
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	116	97	$86.83	$56.96
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	90	90	$170.08	$110.51
17004 Destruction of precancer skin growth, 15 or more growths	67	49	$259.46	$170.56
11103 Biopsy of related skin growth, each additional growth	44	27	$77.71	$51.02
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	32	32	$253.57	$167.43
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	26	25	$469.26	$308.83
11104 Punch biopsy, first skin growth	24	22	$193.91	$123.73
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	22	22	$377.61	$123.86
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$110.45	$72.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,047	198	$10.58	$6.92
99213 Established patient office or other outpatient visit, typically 15 minutes	491	385	$138.62	$90.93
17000 Destruction of skin growth	362	279	$104.96	$51.79
17110 Destruction of up to 14 skin growths	288	235	$179.28	$114.99
11102 Tangential biopsy of single skin lesion	139	122	$160.18	$85.74
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	114	102	$86.99	$57.08
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	103	92	$195.87	$128.99
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	83	83	$171.59	$113.29
17004 Destruction of precancer skin growth, 15 or more growths	49	35	$264.88	$174.39
11103 Biopsy of related skin growth, each additional growth	42	26	$79.17	$50.93
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	35	35	$253.87	$164.65
11104 Punch biopsy, first skin growth	16	15	$198.57	$126.19
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	16	14	$476.34	$314.20
69100 Biopsy of ear	12	12	$151.33	$83.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,116	183	$11.22	$7.20
99213 Established patient office or other outpatient visit, typically 15 minutes	391	324	$130.63	$93.19
17000 Destruction of skin growth	327	267	$105.80	$51.37
17110 Destruction of up to 14 skin growths	290	231	$177.16	$118.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	160	135	$186.43	$131.96
11102 Tangential biopsy of single skin lesion	159	136	$159.42	$89.90
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	90	90	$169.64	$115.41
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	62	56	$81.55	$58.44
11103 Biopsy of related skin growth, each additional growth	52	38	$81.81	$54.29
17004 Destruction of precancer skin growth, 15 or more growths	50	41	$270.99	$178.32
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	38	38	$255.10	$171.48
11104 Punch biopsy, first skin growth	25	24	$198.82	$132.87
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	17	16	$478.42	$321.36
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	14	13	$280.04	$181.08
99202 New patient office or other outpatient visit, typically 20 minutes	13	13	$114.79	$75.30
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	11	11	$385.79	$140.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,016	198	$12.00	$6.83
99213 Established patient office or other outpatient visit, typically 15 minutes	398	311	$114.00	$93.45
17000 Destruction of skin growth	345	291	$105.42	$52.63
17110 Destruction of up to 14 skin growths	253	210	$172.00	$117.93
11102 Tangential biopsy of single skin lesion	182	160	$154.00	$95.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	127	127	$167.00	$115.06
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	90	76	$69.00	$57.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	87	71	$167.00	$132.91
11103 Biopsy of related skin growth, each additional growth	65	43	$83.00	$55.63
17004 Destruction of precancer skin growth, 15 or more growths	60	45	$276.00	$173.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	51	51	$253.00	$166.38
11104 Punch biopsy, first skin growth	23	22	$193.00	$137.34
99202 New patient office or other outpatient visit, typically 20 minutes	20	20	$118.00	$75.08
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	19	18	$474.00	$315.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	213	57	$12.00	$6.29
99213 Established patient office or other outpatient visit, typically 15 minutes	88	85	$114.00	$77.14
17000 Destruction of skin growth	83	82	$101.00	$52.41
17110 Destruction of up to 14 skin growths	59	57	$172.00	$115.99
99202 New patient office or other outpatient visit, typically 20 minutes	45	45	$118.00	$78.26
11102 Tangential biopsy of single skin lesion	40	40	$154.00	$86.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	25	$167.00	$111.78
17004 Destruction of precancer skin growth, 15 or more growths	26	25	$276.00	$164.83
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	18	$69.00	$46.92
11103 Biopsy of related skin growth, each additional growth	14	12	$83.00	$55.61

Medical Specialties & State Licenses

CMS Verified: 2026-02-26

Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

State License CO DR.0064906

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Hospital & Practice Group Affiliations

Dermatology Center Of The Rockies

1551 Professional Ln, Longmont, CO 805016966

Phone: 3035322810

Practice Associates & Co-Workers

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

8 Associated Practitioners

Dr. Christina Sass , DO

Hospitalist

NPI 1023468972

Doctor of Osteopathic Medicine (D.O.)

Dr. Eric Seger , DO

Internal Medicine

NPI 1144670498

Doctor of Osteopathic Medicine (D.O.)

Dr. Phuong Nguyen , MD

Radiology - Diagnostic Radiology

NPI 1285194274

Doctor of Medicine (M.D.)

Dr. Veronica Meierbachtol , DO

Hospitalist

NPI 1295184216

Doctor of Osteopathic Medicine (D.O.)

Otavia Teixeira Peixoto

Student in an Organized Health Care Education/Training Program

NPI 1417307422

Dr. Avi Salamon , MD

Hospitalist

NPI 1437509783

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 26, 2026

Dermatology (License #DR.0064906 in CO)

📍

Updated Business Mailing Address March 11, 2024

Registered at 1551 PROFESSIONAL LN UNIT 135, LONGMONT, CO 805016966 (Tel: 3035322810)

✅

NPI Profile Active October 20, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location October 20, 2016

Registered at 1375 E 19TH AVE, DENVER, CO 802181114 (Tel: 3038126410)

📍

Updated Business Mailing Address October 20, 2016

Registered at 1960 N OGDEN ST, STE 400, DENVER, CO 802183670 (Tel: 3033181540)

👤

Provider Name / Credentials Updated October 20, 2016

Recorded as MAXINE WARREN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 20, 2016

Student in an Organized Health Care Education/Training Program (License #TL 0006342 in CO)

🟢

Initial NPI Registration & Enumeration June 21, 2016

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1508216458

Entity Type:

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

Enumeration Date: June 21, 2016

Last Update: February 26, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1551 Professional Ln Unit 135

Longmont, CO 805016966

Phone: 3035322810

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.