Charles S. Mills, MD
Hospice and Palliative Medicine (Internal Medicine) Physician · Worcester, MA
Charles S. Mills, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in Worcester, Massachusetts, and NPI 1831165190, issued on Feb 27, 2006. Check the license (Massachusetts 46544, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles S. Mills
- Credential
- MD
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License numbers
- 46544 MA
16080 NH
Self-reported in NPPES; status is on the state search - Practice location
- 630 Plantation St, Worcester, MA 01605
- Phone
- (508) 595-2000
- Enumerated
- Feb 27, 2006
- Record last updated
- Apr 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (508) 853-7149
- Medicaid ID
- 3100481 MA
- Medicare enrollment
- Enrolled (PECOS I20130411000576); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 93 in Massachusetts → Look up another NPI →
Also registered at 630 Plantation St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Irfan Asghar, M.D.Internal Medicine Physician1740307396
- Rachel Berkowitz, MSN, FNP-CFamily Nurse Practitioner1407288533
- Laura Bessette, MDInternal Medicine Physician1023082757
- Alice Bonner, GNPNurse Practitioner1366427551
- Aneta Braam, RDMetabolic Nutrition Registered Dietitian1578967063
- Robert Brooks, DOInternal Medicine Physician1558337600
Verify Charles S. Mills in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 46544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
261 Medicare Part D claims for 93 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. 76 claims were for opioids.
Most prescribed
- Methadone Hcl31 claims
- Morphine Sulfate15 claims
- Dexamethasone13 claims
- Alprazolam12 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 one group practice
- Elliot Professional ServicesManchester, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles S. Mills among 93 hospice and palliative medicine (internal medicine) physician records in Massachusetts
Charles S. Mills, MD is one of 93 hospice and palliative medicine (internal 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1979 · median 2010 among the 67 with a school on file
- Record last updated2013 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in Massachusetts
There are 93 hospice and palliative medicine (internal medicine) physician records in Massachusetts.
All 93 in Massachusetts → Every provider in Worcester → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Vandana Nagpal, MDWorcester, MA 016051841226164
- Nancy Swayze, M.D.Worcester, MA 016051144298118
- Jennifer Tjia, MDWorcester, MA 016051477594174
- Julia Gallagher, M.D.Worcester, MA 016041508849365
- Joel Bauman, M.D.Worcester, MA 016551477633600
- Isabel Castro, D.O.Worcester, MA 016551164699583
- Eva Chittenden, MDWorcester, MA 016551093772758
- Philip Hewes, M.D., M.P.H.Worcester, MA 016551780078329
Common questions
What is Charles S. Mills, MD's NPI number?
Charles S. Mills, MD's National Provider Identifier (NPI) is 1831165190, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles S. Mills, MD located?
The NPPES record lists a practice address at 630 Plantation St, Worcester, MA, 01605. Phone: (508) 595-2000. Providers update this record themselves, so call before visiting.
How can I verify Charles S. Mills, MD's license?
NPPES lists Massachusetts license number 46544, 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 Charles S. Mills, MD prescribe under Medicare Part D?
In 2024, Charles S. Mills, MD had 261 Medicare Part D claims for 93 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.