2026 NPPES data Obstetrics & Gynecology Physician NPI 1407881790 MD
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NICOLETTE HORBACH, MD

Obstetrics & Gynecology Physician in ANNANDALE, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
211
Medicare Part D claims · 81 beneficiaries · Obstetrics & Gynecology Physician avg: 179

What the federal data shows

NICOLETTE HORBACH, MD filed 211 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in ANNANDALE, Virginia.

211
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

NICOLETTE HORBACH, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

211 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

NICOLETTE HORBACH, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about NICOLETTE HORBACH, MD?

Quality data not reported

NPI registry status

Active

Issued 07/12/2006

NPI 1407881790

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

211 18% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Virginia

How Obstetrics & Gynecology Physician compares to other specialties among Virginia providers

Virginia providers

Obstetrics & Gynecology Physician share within Virginia

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within Virginia

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

NICOLETTE HORBACH, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 3289 WOODBURN RD, ANNANDALE, VA, 22003, with a listed phone of (571) 389-7140. NPI 1407881790 was issued on 07/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HORBACH most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 211 prescription claims written by this provider, covering 81 Medicare beneficiaries and totaling roughly $49K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3289 WOODBURN RD
ANNANDALE, VA 22003

Provider Details

NPI 1407881790
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Female
NPI Issued 07/12/2006

Hospital and facility affiliations

Facilities where NICOLETTE HORBACH, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

INOVA HEALTH CARE SERVICES
FALLS CHURCH, VA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

211
Total Claims
$49K
Total Drug Cost
81
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
506
Total Day Supply
14,362
Generic Drug Cost
$19K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
0.92
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What NICOLETTE HORBACH, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Estradiol
69
Myrbetriq
Mirabegron
26
Solifenacin Succinate
18
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
14
Premarin
"Estrogens
N/A

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Obstetrics & Gynecology Physician Overview

How NICOLETTE HORBACH, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

NICOLETTE HORBACH, MD's 211 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as HORBACH.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NICOLETTE HORBACH, MD's specialty?
NICOLETTE HORBACH, MD specializes in Obstetrics & Gynecology Physician and practices in ANNANDALE, Virginia. Credentials: MD.
How much does NICOLETTE HORBACH, MD prescribe under Medicare Part D?
In 2023, NICOLETTE HORBACH, MD wrote 211 Medicare Part D claims totaling $49K in drug costs for 81 beneficiaries.
Where is NICOLETTE HORBACH, MD located?
NICOLETTE HORBACH, MD is located at 3289 WOODBURN RD, ANNANDALE, VA, 22003. Phone: (571) 389-7140.
What is NICOLETTE HORBACH, MD's NPI number?
NICOLETTE HORBACH, MD's National Provider Identifier (NPI) is 1407881790, issued on 07/12/2006.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does NICOLETTE HORBACH, MD prescribe most often?
Based on 2023 Medicare Part D data, NICOLETTE HORBACH, MD's most frequently prescribed drugs include Estradiol, Myrbetriq, Solifenacin Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NICOLETTE HORBACH, MD accept Medicare?
NICOLETTE HORBACH, MD appears in CMS Medicare data with 211 Part D claims and 81 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NICOLETTE HORBACH, MD's credentials?
NICOLETTE HORBACH, MD's NPI is 1407881790 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology