Karen Mccowen, M.D.
NPI 1972541274 · Endocrinology, Diabetes & Metabolism Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Mccowen, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in San Diego, CA (NPI 1972541274).
Provider details
- NPI number
- 1972541274
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- C127993 (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
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
766 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 | 233 | $136 |
| 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 | 150 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 121 | $100 |
| 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 | 79 | $17 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 295 | 86 |
| Hydrocortisone | 162 | 37 |
| Semaglutidebrand: Ozempic | 85 | 21 |
| Methimazole | 75 | 24 |
| Teriparatide | 68 | 12 |
| Testosterone | 57 | — |
| Levothyroxine Sodiumbrand: Synthroid | 54 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2018-07-05
Frequently asked questions
- What is Karen Mccowen's NPI number?
- Karen Mccowen's National Provider Identifier (NPI) is 1972541274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Mccowen's specialty?
- Karen Mccowen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Mccowen located?
- Karen Mccowen's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103.
- What is Karen Mccowen's phone number?
- The practice phone number listed in the NPPES registry for Karen Mccowen is (858) 657-1636.
- Does Karen Mccowen accept Medicare?
- Karen Mccowen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Mccowen's NPI active?
- Yes — Karen Mccowen's NPI (1972541274) is active in the NPPES registry as of the last update on 2018-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.