Marsha Mather, MD
NPI 1831772623 · Internal Medicine Physician · Hyannis, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marsha Mather, MD is a Internal Medicine Physician provider in Hyannis, MA (NPI 1831772623).
Provider details
- NPI number
- 1831772623
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1018443 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
172 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 43 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $127 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 35 | $15 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 28 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 18 | $92 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 46 | 24 |
| Levothyroxine Sodium | 39 | 20 |
| Lisinopril | 33 | 18 |
| Omeprazole | 30 | 13 |
| Rosuvastatin Calcium | 22 | 15 |
| Metoprolol Tartrate | 22 | — |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-30
- Last updated
- 2025-01-08
- Certified
- 2025-01-08
Frequently asked questions
- What is Marsha Mather's NPI number?
- Marsha Mather's National Provider Identifier (NPI) is 1831772623, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marsha Mather's specialty?
- Marsha Mather is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marsha Mather located?
- Marsha Mather's practice location on file with NPPES is 1030 Falmouth Rd Ste 101, Hyannis, MA 02601-2324.
- What is Marsha Mather's phone number?
- The practice phone number listed in the NPPES registry for Marsha Mather is (774) 552-3209.
- Does Marsha Mather accept Medicare?
- Marsha Mather is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marsha Mather's NPI active?
- Yes — Marsha Mather's NPI (1831772623) is active in the NPPES registry as of the last update on 2025-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.