Dr. Frederick A Leaf , MD
Dermatology โข Seattle, WA
904 7th Ave
Seattle, WA 981041132
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 July 30, 2006; this date does not establish years in practice.
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Published CMS data list 1,576 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- 17003 โ Destruction of precancer skin growth, 2-14 growths: 655 service units.
- 99214 โ Established patient outpatient office visit: 307 service units.
- 99213 โ Established patient outpatient office visit: 210 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). CPT notice
See all 8 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 276 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Triamcinolone Acetonide โ 74 prescription fills, including refills.
- Clobetasol Propionate โ 61 prescription fills, including refills.
- Ketoconazole โ 53 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 7 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 1,990 in 2018 to 1,576 in 2022.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2018โ2022.
Practice Location & Contact Primary Location
904 7th Ave
Seattle, WA 981041132
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $111,463 in 2022
The total amount Medicare approved for these services in 2022. 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 โ by Provider and Service, 2022.
Paid by Medicare
About $73,256 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, 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 โ by Provider and Service, 2022.
30-day fills
323 standardized 30-day fills in 2022
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
$9,245 in 2022
The total cost of these prescriptions in 2022, 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 โ by Provider and Drug, 2022.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $37.88 in 2022
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2022.
NPI first issued
2006
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, โDoes your provider accept Medicare as full payment?โ
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. Leaf 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. Leaf 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 Seattle and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Leaf are from 2022.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Leaf are from 2022.
120 active clinicians are listed under Dermatology with a practice address in Seattle, WA (384 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
29.2% of these 120 clinicians have the CMS telehealth indicator.
69.2% of these 120 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 decreased 21% from 1,990 in 2018 to 1,576 in 2022.
- 2018: 1,990
- 2019: 2,159
- 2020: 456
- 2021: 1,609
- 2022: 1,576
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Medicare-allowed amount
Medicare-allowed amount decreased 10% from $123,586 in 2018 to $111,463 in 2022.
- 2018: $123,586
- 2019: $132,030
- 2020: $28,411
- 2021: $114,166
- 2022: $111,463
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Paid by Medicare
Paid by Medicare decreased 11% from $82,477 in 2018 to $73,256 in 2022.
- 2018: $82,477
- 2019: $90,145
- 2020: $14,423
- 2021: $78,281
- 2022: $73,256
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 31% from 398 in 2018 to 276 in 2022.
- 2018: 398
- 2019: 383
- 2020: 185
- 2021: 236
- 2022: 276
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30-day fills
30-day fills decreased 40% from 537 in 2018 to 323 in 2022.
- 2018: 537
- 2019: 504
- 2020: 248
- 2021: 281
- 2022: 323
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Part D drug cost
Part D drug cost decreased 61% from $23,900 in 2018 to $9,245 in 2022.
- 2018: $23,900
- 2019: $19,196
- 2020: $8,664
- 2021: $7,869
- 2022: $9,245
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2022 only.
Sources: CMS Medicare Physician & Other Practitioners (2022), CMS Medicare Part D Prescribers (2022), CMS Open Payments (2022), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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 2022 (payments made January 1 โ December 31, 2022): fewer than 11 records totaling $37.88.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $37.88 |
Source: CMS Open Payments, program year 2022, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2021 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 โ by Provider and Service data, 2017โ2022; 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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17003
Destruction of precancer skin growth, 2-14 growths
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655 | 122 | $28.00 | $7.98 |
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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
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307 | 233 | $313.01 | $140.62 |
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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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210 | 169 | $212.00 | $100.59 |
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17000
Destruction of precancer skin growth, 1 growth
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199 | 165 | $219.00 | $69.48 |
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17110
Destruction of skin growth, 1-14 growths
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60 | 53 | $318.00 | $132.93 |
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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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58 | 58 | $314.00 | $123.72 |
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11102
Biopsy of related skin growth, first growth
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52 | 41 | $311.00 | $117.89 |
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17004
Destruction of precancer skin growth, 15 or more growths
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35 | 27 | $534.00 | $195.25 |
Source: CMS Part B by Provider and Service, 2022; 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 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Triamcinolone Acetonide | Triamcinolone Acetonide | 74 | 3,022 | $872.90 | 52 |
| Clobetasol Propionate | Clobetasol Propionate | 61 | 1,585 | $4,438.44 | 28 |
| Ketoconazole | Ketoconazole | 53 | 1,558 | $815.91 | 19 |
| Doxycycline Monohydrate | Doxycycline Monohydrate | 31 | 1,090 | $1,232.29 | 14 |
| Hydrocortisone | Hydrocortisone | 24 | 558 | $124.95 | 18 |
| Metronidazole | Metronidazole | 21 | 592 | $1,721.64 | 16 |
| Acyclovir | Acyclovir | 12 | 80 | $38.62 | โ |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20041223000094
WA
8527026426
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
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.)
Internal Medicine - Pulmonary Disease
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Forensic Psychiatry
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Physical Therapist
Physical Therapist
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated July 30, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Dermatology Specialists in Seattle
- Eric Sorensen
- Dr. Kimberly Katz, MD
- Dr. John Streidl, MD
- Dr. Spencer Vale, MD
- Dr. Kean Lawlor, MD
- Dr. Laura Swanson, MD
Mailing Address
904 7th Ave
Seattle, WA 981041132
Phone: 2063291760