Katherine Newcomb, M.D.
NPI 1528193786 · Internal Medicine Physician · Groveland, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Newcomb, M.D. is a Internal Medicine Physician provider in Groveland, CA (NPI 1528193786).
Provider details
- NPI number
- 1528193786
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G59102 (CA)
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
19 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
470 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 400 | $90 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 70 | $133 |
Typical Medicare-allowed amounts for these services range $90–$133 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 89 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 443 | 116 |
| Amlodipine Besylate | 309 | 84 |
| Metoprolol Succinate | 290 | 72 |
| Levothyroxine Sodium | 198 | 60 |
| Omeprazole | 194 | 53 |
| Lisinopril | 192 | 57 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-21
- Last updated
- 2013-04-04
Frequently asked questions
- What is Katherine Newcomb's NPI number?
- Katherine Newcomb's National Provider Identifier (NPI) is 1528193786, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Newcomb's specialty?
- Katherine Newcomb is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Newcomb located?
- Katherine Newcomb's practice location on file with NPPES is 21340 Beaver Ct, Groveland, CA 95321-9504.
- What is Katherine Newcomb's phone number?
- The practice phone number listed in the NPPES registry for Katherine Newcomb is (209) 962-4611.
- Does Katherine Newcomb accept Medicare?
- Katherine Newcomb is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Newcomb's NPI active?
- Yes — Katherine Newcomb's NPI (1528193786) is active in the NPPES registry as of the last update on 2013-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.