NPI registry status
Active
2026 NPPES data Dermatopathology (Pathology) Physician NPI 1669836276 M.D.
Verify on CMS → Emily Gaster, M.D.
Dermatopathology (Pathology) Physician in Sioux Falls, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 569 in Dermatopathology (Pathology) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
465
Medicare Part D claims · 179 beneficiaries · Dermatopathology (Pathology) Physician avg: 434
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$32.6
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Emily Gaster, M.D. filed 465 Medicare Part D claims in 2024 as a Dermatopathology (Pathology) Physician in Sioux Falls, South Dakota, prescribing 93% generic.
- 465
- Part D claims, 2024
- 93%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥61st
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Emily Gaster, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1669836276), first enumerated 04/09/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 465 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$32.6 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1669836276 · Dermatopathology (Pathology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1669836276
- ENUM-MID 2016
- TAX-NARROW 569
- RX-LIGHT 465
- BOOK-THIN 3 in South Dakota
- PHOTO-ENUM Jill Browning, M.D. · 2016
Emily Gaster, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
465 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Emily Gaster, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Emily Gaster, M.D.?
Quality data not reportedPrimary specialty
Dermatopathology (Pathology) Physician
Medicare Part D claims
465 7% vs specialty avg
Specialty distribution in South Dakota
How Dermatopathology (Pathology) Physician compares to other specialties among South Dakota providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Dermatopathology (Pathology) Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1669836276 |
|---|---|
| Specialty | Dermatopathology (Pathology) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/09/2016 |
Hospital and facility affiliations
Facilities where Emily Gaster, M.D. 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.
Avera Mckennan
Sioux Falls, SD
Physicians Laboratory Ltd
Sioux Falls, SD
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 Emily Gaster, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$33
Largest payer
GENZYME CORPORATION
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.
Brand vs generic prescribing mix · Generic-heavy
Emily Gaster, M.D. - brand share 7.0%
Dermatopathology (Pathology) Physician average
7% brand-name claims vs 93% generic, on 465 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
465
Total Claims
$272K
Total Drug Cost
179
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 529.733
- Total Day Supply
- 13,320
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $261K
- Generic Drug Cost
- $11K
- Antibiotic Claims
- 20
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 0.97
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 13, 65-74: 100, 75-84: 54, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Emily Gaster, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Ketoconazole
Ketoconazole
81 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
51 claims
- Hydrocortisone
Hydrocortisone
35 claims
- Fluocinonide 32
Fluocinonide
32 claims
- Fluorouracil 27
Fluorouracil
27 claims
- Minoxidil 22
Minoxidil
22 claims
- Mupirocin 21
Mupirocin
21 claims
- Spironolactone 20
Spironolactone
20 claims
| Drug | Claims |
|---|---|
| Ketoconazole | 81 |
| Triamcinolone Acetonide | 51 |
| Hydrocortisone | 35 |
| Fluocinonide | 32 |
| Fluorouracil | 27 |
| Minoxidil | 22 |
| Mupirocin | 21 |
| Spironolactone | 20 |
| Mycophenolate Mofetil | 19 |
| Clindamycin Phosphate | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Dermatopathology (Pathology) Physician in SD →
All providers in South Dakota →
Compare specialties →
Dermatopathology (Pathology) Physician Overview
How Emily Gaster, M.D. fits within the Dermatopathology (Pathology) Physician landscape nationally.
569
Dermatopathology (Pathology) Physician Providers in US
49
States with Dermatopathology (Pathology) Physician
434
Avg Claims per Provider
Emily Gaster, M.D.'s 465 claims are above the specialty average of 434.
Nationwide Dermatopathology (Pathology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Gaster, both outside South Dakota so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Dermatopathology (Pathology) Physician Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Gaster.
One of 3 Dermatopathology (Pathology) Physician providers enrolled in South Dakota, 2 are shown here.
Compare Dermatopathology (Pathology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Emily Gaster, M.D.'s specialty? ▼
Emily Gaster, M.D. specializes in Dermatopathology (Pathology) Physician and practices in Sioux Falls, South Dakota. Credentials: M.D..
How much does Emily Gaster, M.D. prescribe under Medicare Part D? ▼
In 2024, Emily Gaster, M.D. wrote 465 Medicare Part D claims totaling $272K in drug costs for 179 beneficiaries.
Where is Emily Gaster, M.D. located? ▼
Emily Gaster, M.D. is located at 6701 S MINNESOTA AVE, Sioux Falls, SD, 57108. Phone: (605) 322-6960.
What is Emily Gaster, M.D.'s NPI number? ▼
Emily Gaster, M.D.'s National Provider Identifier (NPI) is 1669836276, issued on 04/09/2016.
Does Emily Gaster, M.D. prescribe more brand-name or generic drugs? ▼
Emily Gaster, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $261K in brand drug costs.
How many Dermatopathology (Pathology) Physician providers are there in the US? ▼
There are 569 Dermatopathology (Pathology) Physician providers across 49 states in the US. The average Dermatopathology (Pathology) Physician provider writes 434 Medicare Part D claims per year.
What drugs does Emily Gaster, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Emily Gaster, M.D.'s most frequently prescribed drugs include Ketoconazole, Triamcinolone Acetonide, Hydrocortisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Emily Gaster, M.D. accept Medicare? ▼
Emily Gaster, M.D. appears in CMS Medicare data with 465 Part D claims and 179 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Emily Gaster, M.D.'s credentials? ▼
Emily Gaster, M.D.'s NPI is 1669836276 with credentials M.D.. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.