Martha Karetny, MD
NPI 1306806419 · Internal Medicine Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Karetny, MD is a Internal Medicine Physician provider in Brooklyn, NY (NPI 1306806419).
Provider details
- NPI number
- 1306806419
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 204060 (NY)
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
20 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
672 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 284 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 135 | $146 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 82 | $85 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 46 | $141 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 44 | $9 |
| Face-To-Face Behavioral Counseling for Obesity, 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Icosapent Ethylbrand: Vascepa | 107 | 13 |
| Atorvastatin Calcium | 97 | 18 |
| Sitagliptin Phos/Metformin Hclbrand: Janumet | 93 | 14 |
| Amlodipine Besylate | 87 | 16 |
| Olmesartan Medoxomil | 67 | 15 |
| Metoprolol Succinate | 62 | 16 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$786 across 43 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
- 2006-03-23
- Last updated
- 2008-08-21
Frequently asked questions
- What is Martha Karetny's NPI number?
- Martha Karetny's National Provider Identifier (NPI) is 1306806419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Karetny's specialty?
- Martha Karetny is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Martha Karetny located?
- Martha Karetny's practice location on file with NPPES is 726 Avenue Z, Brooklyn, NY 11223-6322.
- What is Martha Karetny's phone number?
- The practice phone number listed in the NPPES registry for Martha Karetny is (718) 872-7373.
- Does Martha Karetny accept Medicare?
- Martha Karetny is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martha Karetny's NPI active?
- Yes — Martha Karetny's NPI (1306806419) is active in the NPPES registry as of the last update on 2008-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.