Haven William Spencer, DO
Emergency Medicine Physician · Hyannis, MA
Haven William Spencer, DO is an emergency medicine physician with a practice address in Hyannis, Massachusetts, and NPI 1982193389, issued on May 2, 2018. Check the license (Massachusetts 287099, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Haven William Spencer
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 287099 MA
Self-reported in NPPES; status is on the state search - Practice location
- 27 Park St, Hyannis, MA 02601
- Phone
- (508) 771-1800
- Enumerated
- May 2, 2018
- Record last updated
- Jun 30, 2022
- Medicare enrollment
- Enrolled (PECOS I20210617001537); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 27 Park St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle AngeliCertified Registered Nurse Anesthetist1023317591
- Christine Anstatt, PTPhysical Therapist1417074105
- Timothy Arruda, MDHospitalist Physician1538134333
- Harvey Auerbach, MDAnesthesiology Physician1881614246
- Eric Band, M.D.Anesthesiology Physician1033475439
- Scott Barron, MDPediatrics Physician1992790760
Verify Haven William Spencer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 287099Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average emergency medicine physician in 2024
452 Medicare Part D claims for 376 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 33 claims were for opioids.
Most prescribed
- Prednisone67 claims
- Cephalexin57 claims
- Cefdinir33 claims
- Oxycodone Hcl30 claims
- Azithromycin20 claims
- Amoxicillin16 claims
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.
Bills Medicare through 2 group practices
- Cape Cod Emergency Associates LLPHyannis, MA
- Urgi Center Medical GroupHarwich, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Haven William Spencer among 1,829 emergency medicine physician records in Massachusetts
Haven William Spencer, DO is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 80% of them.
- NPI issued2018 · 80% of these records are older, 16% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2018 · median 2011 among the 1,200 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 emergency medicine physician records list a practice address in Hyannis
They are 20 of the 1,457 NPPES records with a practice address in Hyannis, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Hyannis → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Kevin Bresnahan, MDHyannis, MA 026011003867144
- Shant Broukian, M.D.Hyannis, MA 026011538505920
- Craig Cornwall, MDHyannis, MA 026011750331443
- Ralph Delorie, MDHyannis, MA 026011356392112
- Valerie Doyle, DOHyannis, MA 026011649617440
- Michael Hall, MDHyannis, MA 026011881650521
- Jeff Herbst, MDHyannis, MA 026011316998396
- Steven Kohler, MDHyannis, MA 026011134170194
Common questions
What is Haven William Spencer, DO's NPI number?
Haven William Spencer, DO's National Provider Identifier (NPI) is 1982193389, issued on May 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Haven William Spencer, DO located?
The NPPES record lists a practice address at 27 Park St, Hyannis, MA, 02601. Phone: (508) 771-1800. Providers update this record themselves, so call before visiting.
How can I verify Haven William Spencer, DO's license?
NPPES lists Massachusetts license number 287099, 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 Haven William Spencer, DO prescribe under Medicare Part D?
In 2024, Haven William Spencer, DO had 452 Medicare Part D claims for 376 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.