Dr. Allen L. Johnson , MD
Internal Medicine • Sedro Woolley, WA
1990 Hospital Dr, Suite 200
Sedro Woolley, WA 982849315
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. Allen Johnson is listed in NPPES under Internal Medicine.
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NPI assigned on March 8, 2006; this date does not establish years in practice.
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Published CMS data list 1,900 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:
- 93010 — Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only: 735 service units.
- 99232 — Subsequent hospital care with moderate levelof medical decision making: 520 service units.
- 99239 — Hospital discharge day management: 239 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 8 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 284 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:
- Metoprolol Succinate — 47 prescription fills, including refills.
- Atorvastatin Calcium — 40 prescription fills, including refills.
- Pantoprazole Sodium — 34 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 13 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 90% of 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 1,261 in 2020 to 1,900 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1990 Hospital Dr
Suite 200
Sedro Woolley, WA 982849315
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 3 distinct group names: Northwest Hospital Medicine Physicians Llc; Post Acute Medical Pllc; South Sound Inpatient Physicians Pllc. 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 Wisconsin School Of Medicine
1992
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
918 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 $128,253 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 $100,981 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
346 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
$11,291 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)
Fewer than 11 payment records totaling $6.03 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.
Years since graduation
34 years (graduated 1992)
CMS Doctors and Clinicians data list 1992 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?”
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. Johnson 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. Johnson 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 Sedro Woolley and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: 445. Middle half: 181 to 884.
Too few clinicians listed under Internal Medicine in Sedro Woolley have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% 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.
Too few clinicians listed under Internal Medicine in Sedro Woolley have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 85% 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.
Too few clinicians listed under Internal Medicine in Sedro Woolley have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Fewer 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.
Too few clinicians listed under Internal Medicine in Sedro Woolley have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower 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.
Too few clinicians listed under Internal Medicine in Sedro Woolley have Medicare Part D data for 2024 to compare.
5 active clinicians are listed under Internal Medicine with a practice address in Sedro Woolley, WA (3,081 in Washington).
Addresses are self-reported to NPPES and may be out of date.
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 51% from 1,261 in 2020 to 1,900 in 2024.
- 2020: 1,261
- 2021: 1,373
- 2022: 1,378
- 2023: 965
- 2024: 1,900
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Medicare-allowed amount
Medicare-allowed amount decreased 11% from $144,293 in 2020 to $128,253 in 2024.
- 2020: $144,293
- 2021: $147,745
- 2022: $134,037
- 2023: $106,417
- 2024: $128,253
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Paid by Medicare
Paid by Medicare decreased 12% from $114,620 in 2020 to $100,981 in 2024.
- 2020: $114,620
- 2021: $117,712
- 2022: $106,575
- 2023: $84,231
- 2024: $100,981
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 16% from 245 in 2020 to 284 in 2024.
- 2020: 245
- 2021: 264
- 2022: 288
- 2023: 323
- 2024: 284
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30-day fills
30-day fills stayed about the same: 329 in 2020 and 346 in 2024.
- 2020: 329
- 2021: 327
- 2022: 319
- 2023: 395
- 2024: 346
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Part D drug cost
Part D drug cost increased 315% from $2,722 in 2020 to $11,291 in 2024.
- 2020: $2,722
- 2021: $1,947
- 2022: $7,488
- 2023: $21,549
- 2024: $11,291
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $28.75 in 2019 to $6.03 in 2025.
- 2019: $28.75
- 2020: $7.58
- 2022: $78.99
- 2024: $230.80
- 2025: $6.03
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): fewer than 11 records totaling $6.03.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) |
Food and Beverage
Cash or cash equivalent
|
LifeVest | General | $6.03 |
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 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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93010
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
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735 | 552 | $32.00 | $7.91 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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520 | 267 | $324.15 | $76.77 |
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99239
Hospital discharge day management, more than 30 minutes
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239 | 226 | $475.11 | $111.77 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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203 | 116 | $512.75 | $113.23 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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144 | 136 | $764.83 | $169.02 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
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28 | 28 | $327.05 | $177.90 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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17 | 15 | $182.00 | $101.07 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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14 | 14 | $537.00 | $127.28 |
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 |
|---|---|---|---|---|---|
| Metoprolol Succinate | Metoprolol Succinate | 47 | 2,170 | $643.41 | 16 |
| Atorvastatin Calcium | Atorvastatin Calcium | 40 | 1,537 | $374.65 | 22 |
| Pantoprazole Sodium | Pantoprazole Sodium | 34 | 1,204 | $340.14 | 18 |
| Amlodipine Besylate | Amlodipine Besylate | 22 | 660 | $65.74 | 12 |
| Furosemide | Furosemide | 22 | 719 | $84.99 | 18 |
| Doxycycline Hyclate | Doxycycline Hyclate | 18 | 100 | $105.88 | 18 |
| Cephalexin | Cephalexin | 17 | 157 | $197.54 | 17 |
| Clopidogrel | Clopidogrel Bisulfate | 17 | 761 | $200.27 | 12 |
| Eliquis | Apixaban | 16 | 471 | $9,060.39 | 12 |
| Prednisone | Prednisone | 14 | 66 | $34.69 | 14 |
| Spironolactone | Spironolactone | 13 | 450 | $67.94 | — |
| Metoprolol Tartrate | Metoprolol Tartrate | 12 | 363 | $61.09 | — |
| Oxycodone Hcl | Oxycodone Hcl | 12 | 50 | $54.54 | 12 |
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.
NUCC Taxonomy Code: 208M00000X
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - HOSPITALIST
I20050421000972
WA
7719925593
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
South Sound Inpatient Physicians Pllc
407 14th Ave Se, Puyallup, WA 983723770
Phone: 2536974000
Northwest Hospital Medicine Physicians Llc
1211 24th St, Anacortes, WA 982212562
Phone: 3602991300
Post Acute Medical Pllc
911 21st St, Anacortes, WA 982212513
Phone: 8557229700
Post Acute Medical Pllc
1119 26th St, Anacortes, WA 982212776
Phone: 8557229700
South Sound Inpatient Physicians Pllc
1415 E Kincaid St, Mount Vernon, WA 982744126
Phone: 3604244111
Post Acute Medical Pllc
6220 S Alaska St, Tacoma, WA 984081317
Phone: 8778839430
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Surgery
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated March 08, 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 Sedro Woolley
Mailing Address
1400 E Kincaid St, Attn: Credentialing
Mount Vernon, WA 982744127
Phone: 3604282500