Sienna Schaeffer, MD
Family Medicine Physician · Lawrence, MA
Sienna Schaeffer, MD is a family medicine physician with a practice address in Lawrence, Massachusetts, and NPI 1194573261, issued on May 13, 2024. Check the license (Massachusetts 3016527, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sienna Schaeffer
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 3016527 MA
Self-reported in NPPES; status is on the state search - Practice location
- 34 Haverhill St, Lawrence, MA 01841
- Phone
- (978) 686-0090
- Enumerated
- May 13, 2024
- Record last updated
- May 13, 2024
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Also registered at 34 Haverhill St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maria Alvelo, REGISTERED NURSERegistered Nurse1801400965
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Verify Sienna Schaeffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 3016527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
47 Medicare Part D claims for 12 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Sienna Schaeffer among 2,265 family medicine physician records in Massachusetts
Sienna Schaeffer, MD is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 97% of them.
- NPI issued2024 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
185 family medicine physician records list a practice address in Lawrence
They are 185 of the 2,264 NPPES records with a practice address in Lawrence, and 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Lawrence → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Annamaria Cappucci, MDLawrence, MA 018411831184340
- Eloise Edgings-Pryce, MDLawrence, MA 018411245223585
- Paul Esielionis, MDLawrence, MA 018411003801523
- David Farzan, MDLawrence, MA 018411093719924
- Michael Giorgetti, M.D.Lawrence, MA 018411821092776
- Richard Glatz, MDLawrence, MA 018411053310797
- Karen Hunt, M.D.Lawrence, MA 018411891799524
- Caren Jacobson, MDLawrence, MA 018411992797245
Common questions
What is Sienna Schaeffer, MD's NPI number?
Sienna Schaeffer, MD's National Provider Identifier (NPI) is 1194573261, issued on May 13, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Sienna Schaeffer, MD located?
The NPPES record lists a practice address at 34 Haverhill St, Lawrence, MA, 01841. Phone: (978) 686-0090. Providers update this record themselves, so call before visiting.
How can I verify Sienna Schaeffer, MD's license?
NPPES lists Massachusetts license number 3016527, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sienna Schaeffer, MD prescribe under Medicare Part D?
In 2024, Sienna Schaeffer, MD had 47 Medicare Part D claims for 12 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.