NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1407838170 MD
Verify on CMS → Gregory Gerboth, MD
Pulmonary Disease Physician in Anchorage, Alaska.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,271 in Pulmonary Disease 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
4K
Medicare Part D claims · 517 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
0%
generic claims · 69% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$120.62
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Gregory Gerboth, MD filed 3,746 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Anchorage, Alaska, prescribing 0% generic.
- 4K
- Part D claims, 2023
- 0%
- generic prescribing
- 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.
Gregory Gerboth, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,746 Top 9% higher than 91% of 1,370,886 prescribers
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)
Gregory Gerboth, 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 Gregory Gerboth, MD?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
3,746 157% vs specialty avg
Specialty distribution in Alaska
How Pulmonary Disease Physician compares to other specialties among Alaska 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 Pulmonary Disease 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).
Gregory Gerboth, MD appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding MD credentials at 3300 PROVIDENCE DR STE B208, Anchorage, AK, 99508, with a listed phone of (907) 212-4090. NPI 1407838170 was issued on 11/17/2005.
Medicare Part D records for calendar year 2023 show 3,746 prescription claims written by this provider, covering 517 Medicare beneficiaries and totaling roughly $3.4 million in drug spend, split 69% brand-name and 0% generic by claim count.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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
Provider Details
| NPI | 1407838170 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/17/2005 |
Hospital and facility affiliations
Facilities where Gregory Gerboth, 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.
Providence Health And Services- Washington
Anchorage, AK
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 Gregory Gerboth, MD. Source: openpaymentsdata.cms.gov.
Total received
$121
Largest payer
INTUITIVE SURGICAL, 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.
Brand vs generic prescribing mix · Brand-heavy
Gregory Gerboth, MD - brand share 69.0%
Pulmonary Disease Physician average
69% brand-name claims vs 0% generic, on 3,746 2023 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 2023.
3,746
Total Claims
$3.4M
Total Drug Cost
517
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,140
- Total Day Supply
- 172,753
- Brand vs Generic
- 69% brand / 0% generic
- Brand Drug Cost
- $3.2M
- Antibiotic Claims
- 294
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 1.61
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 34, 65-74: 237, 75-84: 197, 85+: 49
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gregory Gerboth, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
418 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
360 claims
- Prednisone
Prednisone
234 claims
- Spiriva Respimat
Spiriva Respimat
200 claims
- Ventolin Hfa
Ventolin Hfa
197 claims
- Montelukast Sodium
Montelukast Sodium
188 claims
- Azithromycin
Azithromycin
184 claims
- Breo Ellipta
Breo Ellipta
175 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 418 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 360 |
| Prednisone | 234 |
| Spiriva Respimat Tiotropium Bromide | 200 |
| Ventolin Hfa Albuterol Sulfate | 197 |
| Montelukast Sodium | 188 |
| Azithromycin | 184 |
| Breo Ellipta Fluticasone/Vilanterol | 175 |
| Symbicort Budesonide/Formoterol Fumarate | 170 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 149 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How Gregory Gerboth, MD fits within the Pulmonary Disease Physician landscape nationally.
9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
Gregory Gerboth, MD's 3,746 claims are above the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Alaska
Other clinicians with the same primary specialty enrolled in Alaska, drawn from the same CMS NPPES roster as Gerboth.
Dr. Beth Baker
MD
Anchorage, AK
Dr. John Clark
MD
Anchorage, AK
Dr. David Frankl
M.D., M.P.H.
Anchorage, AK
Dr. Marek Martynowicz
MD
Anchorage, AK
Dr. Norman Wilder
MD
Anchorage, AK
Compare Pulmonary Disease Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Alaska medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pulmonary Disease Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Frequently Asked Questions
What is Gregory Gerboth, MD's specialty? ▼
Gregory Gerboth, MD specializes in Pulmonary Disease Physician and practices in Anchorage, Alaska. Credentials: MD.
How much does Gregory Gerboth, MD prescribe under Medicare Part D? ▼
In 2023, Gregory Gerboth, MD wrote 3,746 Medicare Part D claims totaling $3.4M in drug costs for 517 beneficiaries.
Where is Gregory Gerboth, MD located? ▼
Gregory Gerboth, MD is located at 3300 PROVIDENCE DR STE B208, Anchorage, AK, 99508. Phone: (907) 212-4090.
What is Gregory Gerboth, MD's NPI number? ▼
Gregory Gerboth, MD's National Provider Identifier (NPI) is 1407838170, issued on 11/17/2005.
Does Gregory Gerboth, MD prescribe more brand-name or generic drugs? ▼
Gregory Gerboth, MD's prescribing is 69% brand-name and 0% generic drugs by claim count, with $3.2M in brand drug costs.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does Gregory Gerboth, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Gregory Gerboth, MD's most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gregory Gerboth, MD accept Medicare? ▼
Gregory Gerboth, MD appears in CMS Medicare data with 3,746 Part D claims and 517 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gregory Gerboth, MD's credentials? ▼
Gregory Gerboth, MD's NPI is 1407838170 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
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 (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
Compiled from official public sources by the PlainDoctor editorial team.