2026 NPPES data Ophthalmic Assistant NPI 1720470727 PA-C
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AMBROSIA SANTANA, PA-C

Ophthalmic Assistant in CHANTILLY, 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
354
Medicare Part D claims · 197 beneficiaries · Ophthalmic Assistant avg: 354
Industry payments
$852.88
24 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: AMBROSIA SANTANA, PA-C is a Ophthalmic Assistant ([object Object]) practicing in CHANTILLY, Virginia with a Medicare Part D prescribing footprint of 354 claims across 197 beneficiaries . Industry payments of $852.88 across 24 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: AMBROSIA SANTANA, PA-C filed 354 Medicare Part D claims in 2023 across CHANTILLY, Virginia. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

AMBROSIA SANTANA, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 02/27/2015

NPI 1720470727

Primary specialty

Ophthalmic Assistant

Rare

149 US NPIs in this specialty

Medicare Part D claims

354 0% vs specialty avg

2023 prescription claims

Specialty avg: 354

Specialty distribution in Virginia

How Ophthalmic Assistant compares to other specialties among Virginia providers

Virginia providers

Ophthalmic Assistant share within Virginia

1. Ophthalmic Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmic Assistant share within Virginia

Specialty board-certification context

Estimated specialty board-certified rate — Ophthalmic Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ophthalmic Assistant ABMS/AOA estimate

Est. board-certified rate (Ophthalmic Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ophthalmic Assistant) — 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).

AMBROSIA SANTANA, PA-C is a Ophthalmic Assistant provider practicing in CHANTILLY, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1720470727. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

AMBROSIA SANTANA, PA-C appears in the CMS NPPES registry as a Ophthalmic Assistant provider holding PA-C credentials at 42404 LEEDS FIELD DR, CHANTILLY, VA, 20152, with a listed phone of (571) 438-9590. NPI 1720470727 was issued on 02/27/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SANTANA 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 354 prescription claims written by this provider, covering 197 Medicare beneficiaries and totaling roughly $14K 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.

Ophthalmic Assistant is a narrow specialty nationwide, with 149 enrolled providers across 29 states and an average of 354 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

42404 LEEDS FIELD DR
CHANTILLY, VA 20152

Provider Details

NPI 1720470727
Specialty Ophthalmic Assistant
Credentials PA-C
Gender Female
NPI Issued 02/27/2015

Hospital and facility affiliations

Facilities where AMBROSIA SANTANA, PA-C 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.

PRIVIA MEDICAL GROUP, LLC
STERLING, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for AMBROSIA SANTANA, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$853

Largest payer

Regeneron Healthcare Solutions, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

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

354
Total Claims
$14K
Total Drug Cost
197
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
484
Total Day Supply
10,343
Generic Drug Cost
$13K
Antibiotic Claims
86

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.27
Gender Split
55% female / 45% male
Age Distribution
<65: 13, 65-74: 95, 75-84: 69, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ipratropium Bromide
53
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
42
Mupirocin
39
Omeprazole
29
Methylprednisolone
20
Ofloxacin
19
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
19
Ciprofloxacin-Dexamethasone
Ciprofloxacin Hcl/Dexameth
16
Azelastine Hcl
13
Budesonide
13

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

Ophthalmic Assistant Overview

How AMBROSIA SANTANA, PA-C fits within the Ophthalmic Assistant landscape nationally.

149
Ophthalmic Assistant Providers in US
29
States with Ophthalmic Assistant
354
Avg Claims per Provider

AMBROSIA SANTANA, PA-C's 354 claims are below the specialty average of 354.

Nearby Ophthalmic Assistant Providers in Virginia

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

Compare Ophthalmic Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is AMBROSIA SANTANA, PA-C's specialty?
AMBROSIA SANTANA, PA-C specializes in Ophthalmic Assistant and practices in CHANTILLY, Virginia. Credentials: PA-C.
How much does AMBROSIA SANTANA, PA-C prescribe under Medicare Part D?
In 2023, AMBROSIA SANTANA, PA-C wrote 354 Medicare Part D claims totaling $14K in drug costs for 197 beneficiaries.
Where is AMBROSIA SANTANA, PA-C located?
AMBROSIA SANTANA, PA-C is located at 42404 LEEDS FIELD DR, CHANTILLY, VA, 20152. Phone: (571) 438-9590.
What is AMBROSIA SANTANA, PA-C's NPI number?
AMBROSIA SANTANA, PA-C's National Provider Identifier (NPI) is 1720470727, issued on 02/27/2015.
How many Ophthalmic Assistant providers are there in the US?
There are 149 Ophthalmic Assistant providers across 29 states in the US. The average Ophthalmic Assistant provider writes 354 Medicare Part D claims per year.
What drugs does AMBROSIA SANTANA, PA-C prescribe most often?
Based on 2023 Medicare Part D data, AMBROSIA SANTANA, PA-C's most frequently prescribed drugs include Ipratropium Bromide, Amoxicillin-Clavulanate Potass, Mupirocin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AMBROSIA SANTANA, PA-C accept Medicare?
AMBROSIA SANTANA, PA-C appears in CMS Medicare data with 354 Part D claims and 197 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AMBROSIA SANTANA, PA-C's credentials?
AMBROSIA SANTANA, PA-C's NPI is 1720470727 with credentials PA-C. 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