Karen Hardart, M.D.
NPI 1477556066 · Gynecology Physician · Annapolis, MD
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Hardart, M.D. is a Gynecology Physician provider in Annapolis, MD (NPI 1477556066).
Provider details
- NPI number
- 1477556066
- Entity type
- Individual
- Primary specialty
- Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0053246 (MD)
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
21 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
631 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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 288 | $41 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 176 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $94 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 48 | $46 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 34 | $15 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 222 | 120 |
| Progesterone, Micronizedbrand: Progesterone | 59 | 22 |
| Estradiolbrand: Estradiol (twice Weekly) | 48 | 17 |
| Nystatin | 39 | 21 |
| Valacyclovir Hclbrand: Valacyclovir | 31 | 22 |
| Alendronate Sodium | 29 | 11 |
| Estradiolbrand: Yuvafem | 29 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$564 across 27 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
- 2005-05-27
- Last updated
- 2017-10-31
Frequently asked questions
- What is Karen Hardart's NPI number?
- Karen Hardart's National Provider Identifier (NPI) is 1477556066, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Hardart's specialty?
- Karen Hardart is listed in the NPPES registry with a primary specialty of Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Hardart located?
- Karen Hardart's practice location on file with NPPES is 2000 Medical Pkwy, Annapolis, MD 21401-3742.
- What is Karen Hardart's phone number?
- The practice phone number listed in the NPPES registry for Karen Hardart is (410) 573-9530.
- Does Karen Hardart accept Medicare?
- Karen Hardart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Hardart's NPI active?
- Yes — Karen Hardart's NPI (1477556066) is active in the NPPES registry as of the last update on 2017-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.