Barbara Estes, M.D.
NPI 1508998816 · Obstetrics & Gynecology Physician · Prince Frederick, MD
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Estes, M.D. is a Obstetrics & Gynecology Physician provider in Prince Frederick, MD (NPI 1508998816).
Provider details
- NPI number
- 1508998816
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0051686 (MD)
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
300 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) |
|---|---|---|
| Stool Analysis for Blood to Screen for Colon Tumors82270 | 197 | $4 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $88 |
| Urinalysis, Manual Test81002 | 30 | $3 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 22 | $56 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 17 | $42 |
Typical Medicare-allowed amounts for these services range $3–$88 (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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 61 | 26 |
| Tolterodine Tartrate | 19 | — |
| Zolpidem Tartrate | 14 | — |
| Betamethasone Valerate | 13 | 11 |
| Raloxifene Hcl | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-12
- Last updated
- 2025-10-09
- Certified
- 2025-10-09
Frequently asked questions
- What is Barbara Estes's NPI number?
- Barbara Estes's National Provider Identifier (NPI) is 1508998816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Estes's specialty?
- Barbara Estes is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Estes located?
- Barbara Estes's practice location on file with NPPES is 110 Hospital Rd Ste 310, Prince Frederick, MD 20678-4041.
- What is Barbara Estes's phone number?
- The practice phone number listed in the NPPES registry for Barbara Estes is (410) 414-4740.
- Does Barbara Estes accept Medicare?
- Barbara Estes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Estes's NPI active?
- Yes — Barbara Estes's NPI (1508998816) is active in the NPPES registry as of the last update on 2025-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.