John Vl Sheffield
Internal Medicine • Seattle, WA
325 9th Ave
Seattle, WA 981042499
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 October 27, 2006; this date does not establish years in practice.
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Published CMS data list 362 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:
- G2211 — Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 158 service units.
- 99214 — Established patient outpatient office visit: 84 service units.
- 99215 — Established patient outpatient office visit: 61 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 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,965 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:
- Atorvastatin Calcium — 174 prescription fills, including refills.
- Amlodipine Besylate — 158 prescription fills, including refills.
- Oxycodone Hcl — 85 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 64 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in Seattle, WA (2024, 347 clinicians with data). Median for this group: 314. Middle half: 120 to 699.
Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: 445. Middle half: 181 to 884.
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 381 in 2020 to 362 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
325 9th Ave
Seattle, WA 981042499
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: The Association Of University Physicians. 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
Harvard Medical School
1989
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
98 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 $25,676 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 $17,633 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
3,149 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
$212,151 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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
Years since graduation
37 years (graduated 1989)
CMS Doctors and Clinicians data list 1989 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
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.
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?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
John Sheffield 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 John Sheffield 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 services
Close to the middle for clinicians listed under Internal Medicine in Seattle, WA (2024, 347 clinicians with data). Median for this group: 314. Middle half: 120 to 699.
Close to the middle for clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: 445. Middle half: 181 to 884.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in Seattle, WA (2024, 347 clinicians with data). Median for this group: $29,250. Middle half: $11,630 to $59,921.
A lower Medicare-allowed amount than 65% of clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: $44,391. Middle half: $19,546 to $81,175.
Paid by Medicare
Close to the middle for clinicians listed under Internal Medicine in Seattle, WA (2024, 347 clinicians with data). Median for this group: $21,892. Middle half: $8,890 to $47,646.
A lower Medicare payment amount than 70% of clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: $34,352. Middle half: $14,821 to $61,951.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Internal Medicine in Seattle, WA (2024, 381 clinicians with data). Median for this group: 875. Middle half: 121 to 2,630.
More Part D prescriptions than 60% of clinicians listed under Internal Medicine in Washington (2024, 1,654 clinicians with data). Median for this group: 834. Middle half: 101 to 3,989.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Internal Medicine in Seattle, WA (2024, 381 clinicians with data). Median for this group: $73,115. Middle half: $8,159 to $248,861.
A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Washington (2024, 1,654 clinicians with data). Median for this group: $61,689. Middle half: $2,998 to $293,737.
821 active clinicians are listed under Internal Medicine with a practice address in Seattle, WA (3,081 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
26.8% of these 821 clinicians have the CMS telehealth indicator.
49.7% of these 821 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 varied from year to year: 381 in 2020 and 362 in 2024.
- 2020: 381
- 2021: 279
- 2022: 281
- 2023: 277
- 2024: 362
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Medicare-allowed amount
Medicare-allowed amount decreased 20% from $32,200 in 2020 to $25,676 in 2024.
- 2020: $32,200
- 2021: $31,171
- 2022: $30,756
- 2023: $31,064
- 2024: $25,676
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Paid by Medicare
Paid by Medicare decreased 23% from $22,947 in 2020 to $17,633 in 2024.
- 2020: $22,947
- 2021: $21,893
- 2022: $22,203
- 2023: $22,210
- 2024: $17,633
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 27% from 2,689 in 2020 to 1,965 in 2024.
- 2020: 2,689
- 2021: 2,581
- 2022: 2,744
- 2023: 2,645
- 2024: 1,965
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30-day fills
30-day fills decreased 13% from 3,609 in 2020 to 3,149 in 2024.
- 2020: 3,609
- 2021: 3,636
- 2022: 3,924
- 2023: 3,828
- 2024: 3,149
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Part D drug cost
Part D drug cost decreased 73% from $776,415 in 2020 to $212,151 in 2024.
- 2020: $776,415
- 2021: $712,435
- 2022: $763,675
- 2023: $785,329
- 2024: $212,151
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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, 2017–2024; 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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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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158 | 58 | $51.02 | $18.07 |
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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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84 | 49 | $301.09 | $106.41 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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61 | 33 | $440.63 | $158.10 |
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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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59 | 48 | $201.77 | $71.84 |
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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 174 | 10,817 | $1,817.43 | 40 |
| Amlodipine Besylate | Amlodipine Besylate | 158 | 8,626 | $1,063.54 | 29 |
| Oxycodone Hcl | Oxycodone Hcl | 85 | 2,076 | $892.49 | 18 |
| Losartan Potassium | Losartan Potassium | 68 | 4,168 | $590.14 | 18 |
| Tamsulosin Hcl | Tamsulosin Hcl | 63 | 3,900 | $896.42 | 14 |
| Omeprazole | Omeprazole | 61 | 2,352 | $780.26 | 14 |
| Gabapentin | Gabapentin | 56 | 2,400 | $650.43 | 15 |
| Famotidine | Famotidine | 54 | 2,371 | $665.49 | — |
| Metoprolol Succinate | Metoprolol Succinate | 53 | 2,997 | $642.80 | 15 |
| Levothyroxine Sodium | Levothyroxine Sodium | 50 | 3,047 | $426.65 | 11 |
| Baclofen | Baclofen | 47 | 1,330 | $1,140.63 | — |
| Lisinopril | Lisinopril | 46 | 3,056 | $202.64 | 15 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 41 | 1,438 | $1,615.93 | — |
| Metformin Hcl | Metformin Hcl | 40 | 2,160 | $203.32 | — |
| Carvedilol | Carvedilol | 37 | 997 | $586.60 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 37 | 1,970 | $256.10 | — |
| Eliquis | Apixaban | 36 | 1,796 | $34,673.79 | — |
| Pregabalin | Pregabalin | 35 | 1,028 | $473.27 | — |
| Clotrimazole | Clotrimazole | 33 | 746 | $403.07 | 12 |
| Methadone Hcl | Methadone Hcl | 33 | 896 | $507.50 | — |
| Clopidogrel | Clopidogrel Bisulfate | 32 | 1,534 | $231.44 | — |
| Duloxetine Hcl | Duloxetine Hcl | 27 | 1,544 | $602.51 | — |
| Citalopram Hbr | Citalopram Hydrobromide | 26 | 1,224 | $212.45 | — |
| Lovastatin | Lovastatin | 26 | 754 | $139.73 | — |
| Mirtazapine | Mirtazapine | 25 | 1,329 | $420.01 | — |
(top 25 shown)
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
NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20100825000327
WA
1153445374
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
The Association Of University Physicians
325 9th Ave, Seattle, WA 981042420
Phone: 2067313000
The Association Of University Physicians
1701 Columbia Rd, Seattle, WA 981950001
Phone: 2065983100
The Association Of University Physicians
1959 Ne Pacific St, Seattle, WA 981950001
Phone: 2065984333
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Advanced Registered Nurse Practitioner
Nurse Practitioner - Adult Health
Advanced Registered Nurse Practitioner
Internal Medicine - Infectious Disease
Internal Medicine
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated October 27, 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 Internal Medicine Providers in Seattle
- Dr. Susan Graham, MD
- Evelyn Vinopal
- Swapna Joseph
- Dr. Emily Cooper, MD
- Elizabeth Westling
- Dr. Alison Uyeda, MD
Mailing Address
Po Box 50095
Seattle, WA 981455095
Phone: 2065436420