Active NPI 1538546957 Individual Practitioner Male Practitioner

Dr. Carsten R Hamann , MD

Dermatology • Phoenix, AZ

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Carsten Hamann, MD is a certified Dermatology practicing in Phoenix, AZ. With approximately 11 years of clinical experience since graduating from Loma Linda University School Of Medicine in 2015, Dr. Hamann delivers high-quality medical care to the local community at 3400 E MCDOWELL RD.

Dr. Hamann maintains professional affiliations with Saguaro Dermatology Associates Llc, Mary Hitchcock Memorial Hospital and accepts Medicare assignment.

Frequently performed procedures and clinical services include aminolevulinic acid hcl for topical administration, 10% gel, 10 mg, test for allergy using skin patch, destruction of precancer skin growth, 2-14 growths. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3400 E Mcdowell Rd

Phoenix, AZ 850083884

Telephone 4806813300

Fax 4806813301

Associated Practice Facility / Clinic

🏢 Contact Dermatitis Institute Llc Facility NPI 1659627370

Medicare Profile & Education

Medical School

Loma Linda University School Of Medicine

Graduation Year

2015

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Dermatology in Phoenix, AZ

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

11 Yrs -9.8 yrs vs City Avg

City Avg: 20.8 Yrs

State Avg: 18.6 Yrs

Regional Practice Density

75 Specialists

Practicing in Phoenix, AZ (369 Statewide)

Telehealth Adoption Rate

4.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

41.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hamann (11 Years) 11 Yrs

Phoenix Specialty Average (20.8 Years) 20.8 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
J7345 Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg	4,800	21	$2.54	$1.67
95044 Test for allergy using skin patch	1,852	18	$7.22	$5.04
17003 Destruction of precancer skin growth, 2-14 growths	1,740	288	$10.27	$6.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	777	461	$187.51	$129.33
17000 Destruction of skin growth	530	384	$102.24	$51.93
99213 Established patient office or other outpatient visit, typically 15 minutes	415	317	$132.61	$91.27
17110 Destruction of up to 14 skin growths	323	246	$165.44	$112.75
11102 Tangential biopsy of single skin lesion	275	240	$142.56	$87.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	154	154	$246.75	$169.28
11103 Biopsy of related skin growth, each additional growth	119	71	$70.95	$49.14
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	95	95	$166.37	$110.66
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	62	53	$444.65	$307.99
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	46	38	$358.96	$125.53
17004 Destruction of precancer skin growth, 15 or more growths	41	38	$251.63	$169.09
96574 Application of light with debridement to destroy precancer skin growth	24	21	$404.00	$281.21
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	23	22	$77.96	$54.81
11104 Punch biopsy, first skin growth	17	17	$176.41	$116.27
11603 Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm	16	15	$408.69	$151.96
11402 Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm	14	14	$252.43	$88.35
69100 Biopsy of ear	13	13	$143.23	$78.34
12042 Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm	11	11	$454.55	$274.46
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	11	11	$261.91	$165.66

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7345 Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg	4,403	19	$2.60	$1.63
17003 Destruction of precancer skin growth, 2-14 growths	1,901	344	$10.50	$6.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	782	548	$186.84	$122.32
17000 Destruction of skin growth	567	448	$101.16	$49.04
11102 Tangential biopsy of single skin lesion	352	300	$148.81	$87.58
99213 Established patient office or other outpatient visit, typically 15 minutes	351	290	$130.38	$85.86
17110 Destruction of up to 14 skin growths	267	238	$166.15	$105.82
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	160	160	$249.12	$159.56
11103 Biopsy of related skin growth, each additional growth	130	87	$74.22	$48.48
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	93	80	$449.88	$275.61
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	77	77	$167.53	$106.14
17004 Destruction of precancer skin growth, 15 or more growths	51	45	$265.20	$160.33
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	48	46	$362.00	$116.55
11603 Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm	30	27	$413.00	$136.29
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	27	23	$264.00	$173.25
96574 Application of light with debridement to destroy precancer skin growth	24	19	$414.00	$272.45
11104 Punch biopsy, first skin growth	21	20	$180.67	$118.65
69100 Biopsy of ear	20	17	$145.15	$64.66
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	17	17	$264.00	$158.18
12031 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.5 cm or less	12	12	$389.25	$224.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7345 Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg	3,801	11	$2.40	$1.58
17003 Destruction of precancer skin growth, 2-14 growths	1,707	265	$10.43	$6.47
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	451	311	$187.10	$123.04
17000 Destruction of skin growth	450	328	$99.68	$52.39
99213 Established patient office or other outpatient visit, typically 15 minutes	380	295	$132.09	$87.30
11102 Tangential biopsy of single skin lesion	246	206	$148.01	$87.54
17110 Destruction of up to 14 skin growths	174	143	$165.87	$106.03
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	138	138	$245.59	$161.04
11103 Biopsy of related skin growth, each additional growth	90	58	$74.61	$49.00
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	79	79	$166.86	$107.15
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	53	51	$451.00	$282.19
17004 Destruction of precancer skin growth, 15 or more growths	48	37	$250.00	$164.90
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	41	41	$363.00	$117.12
11104 Punch biopsy, first skin growth	27	25	$164.68	$99.16
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	26	17	$267.00	$175.91
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	17	$64.17	$46.67
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	15	12	$265.00	$135.73
69100 Biopsy of ear	12	11	$144.00	$79.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	310	68	$10.01	$6.21
99213 Established patient office or other outpatient visit, typically 15 minutes	114	103	$130.97	$87.80
17000 Destruction of skin growth	91	86	$97.77	$51.31
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	63	63	$165.14	$106.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	47	43	$185.57	$124.78
17110 Destruction of up to 14 skin growths	45	44	$157.22	$102.53
11102 Tangential biopsy of single skin lesion	35	35	$135.86	$83.21
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$247.42	$158.74
11104 Punch biopsy, first skin growth	11	11	$180.55	$120.66

Medical Specialties & State Licenses

CMS Verified: 2025-12-29

Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

State License AZ 62905

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.

Dermatology

NUCC Taxonomy Code: 207N00000X

State License NH 20079

Dermatology

NUCC Taxonomy Code: 207N00000X

State License CA 145153

Hospital & Practice Group Affiliations

Mary Hitchcock Memorial Hospital

1 Medical Ctr Dr, Lebanon, NH 037561000

Phone: 6036505000

Saguaro Dermatology Associates Llc

2150 S Dobson Rd, Mesa, AZ 852026487

Phone: 4808209774

Mary Hitchcock Memorial Hospital

18 Old Etna Rd, Lebanon, NH 037661937

Phone: 6036504000

Secondary Practice Locations

18 Old Etna Rd

Lebanon, NH 037661970

Phone: 6036503105

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Brianna Peacock , MD

Student in an Organized Health Care Education/Training Program

NPI 1750141065

Doctor of Medicine (M.D.)

Dr. Dathan Hamann , MD

Dermatology

NPI 1760801070

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

18 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 29, 2025

Dermatology (License #62905 in AZ)

📍

Updated Practice Location January 13, 2022

Registered at 3400 E MCDOWELL RD, PHOENIX, AZ 850083884 (Tel: 4806813300)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 13, 2022

Dermatology (License #145153 in CA)

📍

Updated Business Mailing Address August 18, 2021

Registered at 3400 E MCDOWELL RD, PHOENIX, AZ 850083884 (Tel: 4806813300)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 18, 2021

Student in an Organized Health Care Education/Training Program

📍

Updated Practice Location May 23, 2021

Registered at 18 OLD ETNA RD, LEBANON, NH 037661937 (Tel: 6036503105)

👤

Provider Name / Credentials Updated May 23, 2021

Recorded as CARSTEN HAMANN, MD

👤

Provider Name / Credentials Updated October 25, 2018

Recorded as CARSTEN HAMANN, MD, PHD

📍

Updated Practice Location March 23, 2018

Registered at 1 MEDICAL DR DEPT OF, LEBANON, NH 037561000 (Tel: 6036503156)

📍

Updated Business Mailing Address March 23, 2018

Registered at 1 MEDICAL DR, LEBANON, NH 037561000

👤

Provider Name / Credentials Updated March 23, 2018

Recorded as CARSTEN HAMANN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 23, 2018

Dermatology (License #145153 in CA)

✅

NPI Profile Active May 05, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location May 05, 2015

Registered at 11234 ANDERSON ST, GME OFFICE WESTERLY SUITE C, LOMA LINDA, CA 923501716 (Tel: 9095584074)

📍

Updated Business Mailing Address May 05, 2015

Registered at 11234 ANDERSON ST, GME OFFICE WESTERLY SUITE C, LOMA LINDA, CA 923501716 (Tel: 9095584074)

👤

Provider Name / Credentials Updated May 05, 2015

Recorded as CARSTEN HAMANN

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 05, 2015

Student in an Organized Health Care Education/Training Program

🟢

Initial NPI Registration & Enumeration May 05, 2015

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1538546957

Entity Type:

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

Enumeration Date: May 05, 2015

Last Update: December 29, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3400 E Mcdowell Rd

Phoenix, AZ 850083884

Phone: 4806813300

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.