Karen-Gail Brandse, MD
NPI 1588645790 · Internal Medicine Physician · Natick, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen-Gail Brandse, MD is a Internal Medicine Physician provider in Natick, MA (NPI 1588645790).
Provider details
- NPI number
- 1588645790
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 153724 (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
20 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
763 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 172 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 166 | $139 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 160 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 157 | $99 |
| Administration of Influenza Virus VaccineG0008 | 108 | $35 |
Typical Medicare-allowed amounts for these services range $16–$141 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 254 | 70 |
| Levothyroxine Sodium | 198 | 53 |
| Atorvastatin Calcium | 183 | 47 |
| Losartan Potassium | 165 | 44 |
| Amlodipine Besylate | 148 | 41 |
| Metoprolol Succinate | 118 | 32 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-07
- Last updated
- 2010-02-19
Frequently asked questions
- What is Karen-Gail Brandse's NPI number?
- Karen-Gail Brandse's National Provider Identifier (NPI) is 1588645790, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen-Gail Brandse's specialty?
- Karen-Gail Brandse is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen-Gail Brandse located?
- Karen-Gail Brandse's practice location on file with NPPES is 67 Union St, Natick, MA 01760-7700.
- What is Karen-Gail Brandse's phone number?
- The practice phone number listed in the NPPES registry for Karen-Gail Brandse is (508) 650-7640.
- Does Karen-Gail Brandse accept Medicare?
- Karen-Gail Brandse is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen-Gail Brandse's NPI active?
- Yes — Karen-Gail Brandse's NPI (1588645790) is active in the NPPES registry as of the last update on 2010-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.