Karen Sapienza, MD
NPI 1306101464 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Sapienza, MD is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1306101464).
Provider details
- NPI number
- 1306101464
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 47534 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
343 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 103 | $113 |
| Management of Oxygen Chamber Therapy99183 | 102 | $101 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 35 | $71 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 31 | $109 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 29 | $75 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 264 | 20 |
| Atorvastatin Calcium | 102 | 21 |
| Amlodipine Besylate | 92 | 15 |
| Sertraline Hcl | 86 | — |
| Metoprolol Tartrate | 74 | 12 |
| Apixabanbrand: Eliquis | 70 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$260 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-05
- Last updated
- 2017-04-06
Frequently asked questions
- What is Karen Sapienza's NPI number?
- Karen Sapienza's National Provider Identifier (NPI) is 1306101464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Sapienza's specialty?
- Karen Sapienza is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Sapienza located?
- Karen Sapienza's practice location on file with NPPES is 9225 N 3rd St Ste 300, Phoenix, AZ 85020-2466.
- What is Karen Sapienza's phone number?
- The practice phone number listed in the NPPES registry for Karen Sapienza is (602) 445-0751.
- Does Karen Sapienza accept Medicare?
- Karen Sapienza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Sapienza's NPI active?
- Yes — Karen Sapienza's NPI (1306101464) is active in the NPPES registry as of the last update on 2017-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.