Dr. Katherine Altman , DO
Internal Medicine β’ Seattle, WA
1959 Ne Pacific St
Seattle, WA 981955226
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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Dr. Katherine Altman is listed in NPPES under Internal Medicine.
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NPI assigned on April 3, 2015; this date does not establish years in practice.
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Published CMS data list 3,495 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Arexvy (Rsvpref3 Antigen/As01e/Pf) β 1,159 prescription fills, including refills.
- Shingrix (Varicella-Zoster Ge/As01b/Pf) β 993 prescription fills, including refills.
- Boostrix Tdap (Diphth,pertuss(Acell),tet Vac) β 737 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 7 records in the table Β· Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 80% of clinicians listed under Internal Medicine in Seattle, WA (2024, 382 clinicians with data). Median for this group: 866. Middle half: 117 to 2,618.
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Washington (2024, 1,678 clinicians with data). Median for this group: 770. Middle half: 98 to 3,969.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 11 in 2017 to 3,495 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017β2024.
Practice Location & Contact Primary Location
1959 Ne Pacific St
Seattle, WA 981955226
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
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
3,495 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
$652,991 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 β by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $119.11 in 2025
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 2025.
NPI first issued
2015
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, βDoes your provider accept Medicare as full payment?β
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. Altman 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. Altman 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 D prescriptions
More Part D prescriptions than 80% of clinicians listed under Internal Medicine in Seattle, WA (2024, 382 clinicians with data). Median for this group: 866. Middle half: 117 to 2,618.
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Washington (2024, 1,678 clinicians with data). Median for this group: 770. Middle half: 98 to 3,969.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Internal Medicine in Seattle, WA (2024, 382 clinicians with data). Median for this group: $71,924. Middle half: $7,413 to $248,688.
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Washington (2024, 1,678 clinicians with data). Median for this group: $59,301. Middle half: $2,756 to $291,770.
823 active clinicians are listed under Internal Medicine with a practice address in Seattle, WA (3,123 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
26.4% of these 823 clinicians have the CMS telehealth indicator.
49.6% of these 823 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 D prescriptions
Medicare Part D prescriptions went from 11 in 2017 to 3,495 in 2024.
- 2017: 11
- 2019: 24
- 2022: 286
- 2023: 376
- 2024: 3,495
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30-day fills
30-day fills increased 16949% from 21 in 2017 to 3,495 in 2024.
- 2017: 21
- 2019: 31
- 2022: 286
- 2023: 376
- 2024: 3,495
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Part D drug cost
Part D drug cost went from $377 in 2017 to $652,991 in 2024.
- 2017: $377
- 2019: $821
- 2022: $46,260
- 2023: $88,552
- 2024: $652,991
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $646.35 in 2020 to $119.11 in 2025.
- 2020: $646.35
- 2021: $847.13
- 2022: $1,556.30
- 2023: $200.88
- 2025: $119.11
Sources: 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 Β· 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 β December 31, 2025): fewer than 11 records totaling $119.11.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
|
NUCALA | General | $119.11 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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 |
|---|---|---|---|---|---|
| Arexvy | Rsvpref3 Antigen/As01e/Pf | 1,159 | 1,159 | $288,548.88 | 1157 |
| Shingrix | Varicella-Zoster Ge/As01b/Pf | 993 | 993 | $177,196.54 | 901 |
| Boostrix Tdap | Diphth,pertuss(Acell),tet Vac | 737 | 824 | $43,430.42 | 736 |
| Abrysvo | Rsv Vacc, Pref A And Pref B/Pf | 493 | 551 | $130,428.86 | 492 |
| Twinrix | Hepatitis A And B Vaccine/Pf | 68 | 68 | $8,409.07 | 51 |
| Havrix | Hepatitis A Virus Vaccine/Pf | 26 | 26 | $2,540.39 | 26 |
| Typhim Vi | Typhoid Vi Polysacch Vaccine | 19 | 19 | $2,436.54 | 19 |
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: 2021-04-01NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20181213003093
WA
7810203726
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.
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Neurology
Hospitalist
Doctor of Medicine (M.D.)
Student in an Organized Health Care Education/Training Program
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 1959 NE PACIFIC ST, SEATTLE, WA 981955226 (Tel: 2062294899)
Registered at 1959 NE PACIFIC ST, SEATTLE, WA 981950001
Registered at 201 16TH AVE E, SEATTLE, WA 981125226
Internal Medicine (license number reported to NPPES: WA OP60780374)
NPI status registered as active in NPPES database
Registered at 1959 NE PACIFIC ST RM BB-527, BOX 356421, SEATTLE, WA 981956421 (Tel: 2065433605)
Registered at 1959 NE PACIFIC ST RM BB-527, BOX 356421, SEATTLE, WA 981956421
Recorded as KATHERINE ALTMAN, DO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Seattle
- Karen Mcdonough
- Dr. Wallace Hodges, MD
- Dr. Darell Kumar, DO
- Dr. Eric Carpentier, MD
- Dr. Eric Mar, MD
- Dr. Lauren Carpenter, MD
Mailing Address
1959 Ne Pacific St
Seattle, WA 981950001