Dr. Dathan Hamann , MD
Dermatology • Phoenix, AZ
3400 E Mcdowell Rd
Phoenix, AZ 850083884
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on April 15, 2014; this date does not establish years in practice.
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Published CMS data list 8,497 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 95044 — Test for allergy using skin patch: 6,723 service units.
- 17003 — Destruction of precancer skin growth, 2-14 growths: 623 service units.
- 99214 — Established patient outpatient office visit: 399 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 15 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 418 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Triamcinolone Acetonide — 118 prescription fills, including refills.
- Clobetasol Propionate — 51 prescription fills, including refills.
- Ketoconazole — 44 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 15 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Dermatology in Phoenix, AZ (2024, 49 clinicians with data). Median for this group: 3,566. Middle half: 1,797 to 5,966.
More Medicare Part B services than 80% of clinicians listed under Dermatology in Arizona (2024, 224 clinicians with data). Median for this group: 3,943. Middle half: 1,878 to 7,666.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 4,520 in 2020 to 8,497 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
3400 E Mcdowell Rd
Phoenix, AZ 850083884
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Mesa, AZ. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Saguaro Dermatology Associates Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of Arizona College Of Medicine
2014
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
388 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $172,164 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $126,600 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
510 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$210,875 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $30,300.00 across 127 records.
By nature of payment (3 largest of 5)
- Consulting Fee: $20,000.00 across 3 records.
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $6,250.00 across 2 records.
- Food and Beverage: $3,073.77 across 119 records.
Reporting-company totals (3 largest of 20)
- Pfizer Inc.: $25,014.03 across 20 records.
- Incyte Corporation: $2,724.37 across 7 records.
- Galderma Laboratories, L.P.: $368.68 across 11 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
12 years (graduated 2014)
CMS Doctors and Clinicians data list 2014 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2014
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Hamann has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Hamann as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Phoenix and Arizona
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Dermatology in Phoenix, AZ (2024, 49 clinicians with data). Median for this group: 3,566. Middle half: 1,797 to 5,966.
More Medicare Part B services than 80% of clinicians listed under Dermatology in Arizona (2024, 224 clinicians with data). Median for this group: 3,943. Middle half: 1,878 to 7,666.
Medicare-allowed amount
A lower Medicare-allowed amount than 70% of clinicians listed under Dermatology in Phoenix, AZ (2024, 49 clinicians with data). Median for this group: $281,828. Middle half: $166,440 to $468,545.
A lower Medicare-allowed amount than 65% of clinicians listed under Dermatology in Arizona (2024, 224 clinicians with data). Median for this group: $281,392. Middle half: $150,156 to $520,947.
Paid by Medicare
A lower Medicare payment amount than 70% of clinicians listed under Dermatology in Phoenix, AZ (2024, 49 clinicians with data). Median for this group: $201,763. Middle half: $113,001 to $334,149.
A lower Medicare payment amount than 65% of clinicians listed under Dermatology in Arizona (2024, 224 clinicians with data). Median for this group: $200,367. Middle half: $105,880 to $377,838.
Medicare Part D prescriptions
Fewer Part D prescriptions than 65% of clinicians listed under Dermatology in Phoenix, AZ (2024, 52 clinicians with data). Median for this group: 595. Middle half: 339 to 735.
Fewer Part D prescriptions than 60% of clinicians listed under Dermatology in Arizona (2024, 238 clinicians with data). Median for this group: 597. Middle half: 271 to 922.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Dermatology in Phoenix, AZ (2024, 52 clinicians with data). Median for this group: $19,809. Middle half: $8,800 to $164,245.
A higher Part D drug cost than 80% of clinicians listed under Dermatology in Arizona (2024, 238 clinicians with data). Median for this group: $23,120. Middle half: $7,680 to $170,119.
73 active clinicians are listed under Dermatology with a practice address in Phoenix, AZ (350 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Phoenix
4.1% of these 73 clinicians have the CMS telehealth indicator.
68.5% of these 73 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 88% from 4,520 in 2020 to 8,497 in 2024.
- 2020: 4,520
- 2021: 7,079
- 2022: 9,375
- 2023: 7,052
- 2024: 8,497
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Medicare-allowed amount
Medicare-allowed amount increased 143% from $70,963 in 2020 to $172,164 in 2024.
- 2020: $70,963
- 2021: $129,671
- 2022: $186,948
- 2023: $184,053
- 2024: $172,164
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Paid by Medicare
Paid by Medicare increased 140% from $52,695 in 2020 to $126,600 in 2024.
- 2020: $52,695
- 2021: $93,428
- 2022: $134,109
- 2023: $129,794
- 2024: $126,600
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 95% from 214 in 2020 to 418 in 2024.
- 2020: 214
- 2021: 393
- 2022: 398
- 2023: 338
- 2024: 418
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30-day fills
30-day fills increased 108% from 245 in 2020 to 510 in 2024.
- 2020: 245
- 2021: 458
- 2022: 487
- 2023: 415
- 2024: 510
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Part D drug cost
Part D drug cost increased 2125% from $9,475 in 2020 to $210,875 in 2024.
- 2020: $9,475
- 2021: $16,598
- 2022: $15,063
- 2023: $68,621
- 2024: $210,875
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $424.58 in 2021 to $30,300.00 in 2025.
- 2021: $424.58
- 2022: $1,097.97
- 2023: $4,719.41
- 2024: $19,320.43
- 2025: $30,300.00
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 127 records totaling $30,300.00.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Pfizer Inc. |
Consulting Fee
Cash or cash equivalent
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LITFULO | General | $9,420.00 |
| Pfizer Inc. |
Consulting Fee
Cash or cash equivalent
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CIBINQO | General | $7,980.00 |
| Pfizer Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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CIBINQO | General | $3,125.00 |
| Pfizer Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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CIBINQO | General | $3,125.00 |
| Incyte Corporation |
Consulting Fee
Cash or cash equivalent
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— | General | $2,600.00 |
| Pfizer Inc. |
Travel and Lodging
In-kind items and services
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CIBINQO | General | $819.52 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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CIBINQO | General | $186.52 |
| Pfizer Inc. |
Travel and Lodging
In-kind items and services
|
CIBINQO | General | $147.06 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
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NEMLUVIO | General | $138.92 |
| Organon LLC |
Food and Beverage
In-kind items and services
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VTAMA | General | $135.13 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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DUPIXENT | General | $119.88 |
| Botanix SB Inc |
Food and Beverage
In-kind items and services
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SOFDRA | General | $114.84 |
| KYOWA KIRIN, INC. |
Food and Beverage
In-kind items and services
|
POTELIGEO | General | $81.45 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
NEMLUVIO | General | $79.87 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
NEMLUVIO | General | $62.11 |
| LEO Pharma Inc. |
Food and Beverage
In-kind items and services
|
ADBRY | General | $61.63 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
NEMLUVIO | General | $49.61 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
CIBINQO | General | $48.77 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
CIBINQO | General | $38.23 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $36.17 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
|
— | General | $35.84 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $35.00 |
| Krystal Biotech Inc |
Food and Beverage
In-kind items and services
|
VYJUVEK | General | $34.93 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $34.28 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $33.68 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2019–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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95044
Test for allergy using skin patch
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6,723 | 57 | $7.22 | $4.94 |
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17003
Destruction of precancer skin growth, 2-14 growths
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623 | 82 | $9.75 | $6.80 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
399 | 222 | $188.40 | $130.30 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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151 | 123 | $133.75 | $91.94 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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138 | 138 | $245.04 | $169.30 |
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17000
Destruction of precancer skin growth, 1 growth
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130 | 99 | $99.55 | $55.54 |
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11102
Biopsy of related skin growth, first growth
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90 | 81 | $146.42 | $96.35 |
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17110
Destruction of skin growth, 1-14 growths
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56 | 45 | $166.57 | $113.48 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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43 | 43 | $163.44 | $112.42 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
|
32 | 29 | $82.84 | $58.02 |
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11104
Punch biopsy, first skin growth
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31 | 29 | $182.52 | $125.61 |
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11103
Biopsy of related skin growth, each additional growth
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26 | 21 | $73.58 | $51.26 |
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12032
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm
|
22 | 21 | $444.73 | $286.52 |
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17004
Destruction of precancer skin growth, 15 or more growths
|
21 | 13 | $245.62 | $171.63 |
|
11602
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm
|
12 | 12 | $357.50 | $117.32 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Triamcinolone Acetonide | Triamcinolone Acetonide | 118 | 4,830 | $1,605.33 | 71 |
| Clobetasol Propionate | Clobetasol Propionate | 51 | 1,699 | $2,017.28 | 37 |
| Ketoconazole | Ketoconazole | 44 | 1,722 | $549.33 | 21 |
| Prednisone | Prednisone | 40 | 1,046 | $262.15 | 26 |
| Fluorouracil | Fluorouracil | 23 | 734 | $1,608.39 | 20 |
| Mycophenolate Mofetil | Mycophenolate Mofetil | 23 | 890 | $594.45 | — |
| Fluocinolone Acetonide | Fluocinolone/Shower Cap | 20 | 509 | $672.15 | 14 |
| Betamethasone Dipropionate | Betamethasone Dipropionate | 15 | 700 | $712.09 | 11 |
| Tacrolimus | Tacrolimus | 14 | 395 | $2,249.44 | — |
| Doxycycline Hyclate | Doxycycline Hyclate | 12 | 479 | $447.80 | — |
| Nystatin | Nystatin | 12 | 435 | $192.35 | — |
| Mupirocin | Mupirocin | 12 | 137 | $120.66 | — |
| Erivedge | Vismodegib | 12 | 336 | $157,213.68 | — |
| Fluocinonide | Fluocinonide | 11 | 325 | $443.57 | — |
| Dupixent Pen | Dupilumab | 11 | 294 | $42,186.43 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-03-22NUCC Taxonomy Code: 207N00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20180619003639
AZ
6002133220
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Saguaro Dermatology Associates Llc
3400 E Mcdowell Rd, Phoenix, AZ 850083884
Phone: 4806813300
Secondary Practice Locations
2150 S Dobson Rd Ste 1
Mesa, AZ 852026487
Phone: 4808209774
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 3400 E MCDOWELL RD, PHOENIX, AZ 850083884 (Tel: 4806813300)
Registered at 3400 E MCDOWELL RD, PHOENIX, AZ 850083884 (Tel: 4806813300)
Dermatology (license number reported to NPPES: AZ 54501)
NPI status registered as active in NPPES database
Registered at 410 W 10TH AVE, COLUMBUS, OH 432101240 (Tel: 6142933989)
Registered at 114 W ADAMS ST, #405, PHOENIX, AZ 850032000 (Tel: 6023634805)
Recorded as DATHAN HAMANN, M.D.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dermatology Specialists in Phoenix
- Dr. Jennifer Aronica, MD
- Dr. Peter Sigal, DO
- Dr. Mark Rosenberg, DO
- Dr. Sadra Jazayeri, MD
- Dr. Yi Gao, MD
- Dr. Amanda Rainwater, MD
Mailing Address
3400 E Mcdowell Rd
Phoenix, AZ 850083884
Phone: 4806813300