Physician Profile
Based in Seattle, WA, Margaret N. Chapman, M.D. is listed in the NPI registry under nuclear medicine. Margaret graduated from Tufts University School of Medicine in 2008. Margaret is also listed as specializing in diagnostic radiology. According to Medicare claims data, Margaret cared for 3,194 Medicare patients across 52,159 services. The services billed most often include injection, gadobutrol, 0.1 ml, low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, and mri scan of lower spinal canal without contrast.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1100 9TH AVE MS:C5-XR
Seattle, WA 98101
840 Harrison Ave
Boston, MA 02118
88 E Newton St
Boston, MA 02118
52,159 services · 3,194 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Mri scan of lower spinal canal without contrast | Imaging | 72148 |
1,094 | More than most peers in Nuclear Medicine |
| Mri scan of brain without contrast | Imaging | 70551 |
867 | More than most peers in Nuclear Medicine |
| Mri scan of brain before and after contrast | Imaging | 70553 |
534 | More than most peers in Nuclear Medicine |
| Mri scan of upper spinal canal without contrast | Imaging | 72141 |
530 | More than most peers in Nuclear Medicine |
| Ct scan head or brain without contrast | Imaging | 70450 |
307 | More often than most peers in Nuclear Medicine |
| Mri scan of blood vessels of head without contrast | Imaging | 70544 |
253 | More than most peers in Nuclear Medicine |
| Mri scan of middle spinal canal without contrast | Imaging | 72146 |
157 | More than most peers in Nuclear Medicine |
| Ct scan of soft tissue of neck with contrast | Imaging | 70491 |
155 | More than most peers in Nuclear Medicine |
| Ct scan of face without contrast | Imaging | 70486 |
154 | More than most peers in Nuclear Medicine |
| Ct scan of lower spine without contrast | Imaging | 72131 |
147 | More than most peers in Nuclear Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Margaret N. Chapman is a nuclear medicine in Seattle, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Margaret N. Chapman is listed at 1100 9Th Ave Ms:c5-Xr, Seattle, WA 98101. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (206) 223-6600. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Margaret N. Chapman's National Provider Identifier is 1306009980. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Margaret N. Chapman attended Tufts University School of Medicine, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
Margaret N. Chapman has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Margaret N. Chapman performs imaging including mri scan of lower spinal canal without contrast and mri scan of brain without contrast. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Margaret N. Chapman. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.