Maria P Claflin
Nurse Practitioner โข Seattle, WA
1100 9th Ave, Ms:c6-Gsur
Seattle, WA 981012756
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 2, 2013; this date does not establish years in practice.
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Published CMS data list 40 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99215 โ Established patient outpatient office visit: 28 service units.
- 99214 โ Established patient outpatient office visit: 12 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Medicare Part B services went from 265 in 2021 to 40 in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021โ2023.
Practice Location & Contact Primary Location
1100 9th Ave
Ms:c6-Gsur
Seattle, WA 981012756
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 Stanford, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $5,103 in 2023
The total amount Medicare approved for these services in 2023. 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, 2023.
Paid by Medicare
About $3,641 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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, 2023.
Open Payments general payments, program year 2025
All general payments: $544.02 across 4 records.
By nature of payment
- Food and Beverage: $544.02 across 4 records.
Reporting-company totals
- Astellas Pharma US Inc: $254.95 across 2 records.
- EMD Serono, Inc.: $164.07 across 1 record.
- Bristol Myers Squibb Company: $125.00 across 1 record.
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).
NPI first issued
2013
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)
Maria Claflin 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 Maria Claflin 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 Maria Claflin are from 2023.
569 active clinicians are listed under Nurse Practitioner with a practice address in Seattle, WA (2,310 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
28.8% of these 569 clinicians have the CMS telehealth indicator.
58.7% of these 569 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 85% from 265 in 2021 to 40 in 2023.
- 2021: 265
- 2022: 56
- 2023: 40
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Medicare-allowed amount
Medicare-allowed amount decreased 46% from $9,480 in 2021 to $5,103 in 2023.
- 2021: $9,480
- 2022: $7,885
- 2023: $5,103
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Paid by Medicare
Paid by Medicare decreased 61% from $9,278 in 2021 to $3,641 in 2023.
- 2021: $9,278
- 2022: $6,943
- 2023: $3,641
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Open Payments (2025), 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 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $544.02.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| EMD Serono, Inc. |
Food and Beverage
Cash or cash equivalent
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โ | General | $164.07 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Vyloy | General | $129.95 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Xtandi | General | $125.00 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
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OPDIVO | General | $125.00 |
Source: CMS Open Payments, program year 2025, 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 2020โ2022 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, 2021โ2023; 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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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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28 | 28 | $922.00 | $141.18 |
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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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12 | 12 | $716.00 | $95.86 |
Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-01-29NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363LG0600X
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20210323002552
CA
4385868736
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
300 Pasteur Dr
Stanford, CA 943052200
Phone: 6507234000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Nurse Practitioner
Master of Science in Nursing, Nurse Practitioner
Physician Assistant - Surgical
Physician Assistant (Certified)
Surgery
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1100 9TH AVE, SEATTLE, WA 981012756 (Tel: 2065155811)
Recorded as MARIA CLAFLIN
Nurse Practitioner (license number reported to NPPES: CA 16118)
NPI status registered as active in NPPES database
Registered at 1100 9TH AVE, MS:C6-GSUR, SEATTLE, WA 981012756 (Tel: 2066257188)
Registered at 1100 9TH AVE, MS:M4-PFS, SEATTLE, WA 981012756 (Tel: 2065155811)
Recorded as MARIA PINEDA
Nurse Practitioner (license number reported to NPPES: WA AP60315856)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Seattle
- Sonia Glennie, ARNP, MSN, AGPCNP-BC
- Joseph Ferry, ARNP
- Dr. Dylan Miller, DNP
- Maisa Rouzer, ARNP
- Fang Fang, ARNP
- Dr. Ibrahima Touray, DNP, AGNP-C
Mailing Address
1100 9th Ave
Seattle, WA 981012756
Phone: 2065155811