NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1205941416 MD
Verify on CMS → Joseph Gilg, MD
Rheumatology Physician in Urbandale, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,200 in Rheumatology 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
6K
Medicare Part D claims · 568 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Joseph Gilg, MD filed 5,536 Medicare Part D claims in 2023 as a Rheumatology Physician in Urbandale, Iowa, prescribing 95% generic.
- 6K
- Part D claims, 2023
- 95%
- generic prescribing
- ≥95th
- 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 Joseph Gilg, MD
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 1205941416), first enumerated 08/20/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 5,536 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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1205941416 · Rheumatology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1205941416
- ENUM-LEGACY 2006
- TAX-MID 6K Rheumatology Physician
- RX-MID 5,536
- BOOK-THIN 27 in Iowa
- PHOTO-ENUM Harjinder Chowdhary · 2006
Joseph Gilg, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,536 ≥ 95th percentile 95% of 1,370,886 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 · 2023
◑
Board-eligible specialty (heuristic, not verified)
Joseph Gilg, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Joseph Gilg, MD?
Quality data not reportedPrimary specialty
Rheumatology Physician
Medicare Part D claims
5,536 170% vs specialty avg
Specialty distribution in Iowa
How Rheumatology Physician compares to other specialties among Iowa 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 Rheumatology 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 | 1205941416 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/20/2006 |
Brand vs generic prescribing mix · Generic-heavy
Joseph Gilg, MD - brand share 5.0%
Rheumatology Physician average
5% brand-name claims vs 95% generic, on 5,536 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.
5,536
Total Claims
$1.3M
Total Drug Cost
568
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,496
- Total Day Supply
- 275,919
- Brand vs Generic
- 5% brand / 95% generic
- Brand Drug Cost
- $1.1M
- Generic Drug Cost
- $139K
- Opioid Claims
- 1,044 (18.9% rate)
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 1.32
- Gender Split
- 78% female / 22% male
- Age Distribution
- <65: 69, 65-74: 249, 75-84: 209, 85+: 41
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joseph Gilg, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tramadol Hcl
Tramadol Hcl
702 claims
- Methotrexate
Methotrexate
576 claims
- Prednisone
Prednisone
451 claims
- Meloxicam
Meloxicam
320 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
281 claims
- Gabapentin 273
Gabapentin
273 claims
- Alendronate Sodium 255
Alendronate Sodium
255 claims
- Hydroxychloroquine… 247
Hydroxychloroquine Sulfate
247 claims
| Drug | Claims |
|---|---|
| Tramadol Hcl | 702 |
| Methotrexate Methotrexate Sodium | 576 |
| Prednisone | 451 |
| Meloxicam | 320 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 281 |
| Gabapentin | 273 |
| Alendronate Sodium | 255 |
| Hydroxychloroquine Sulfate | 247 |
| Tizanidine Hcl | 216 |
| Duloxetine Hcl | 201 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Joseph Gilg, MD fits within the Rheumatology Physician landscape nationally.
6,200
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Joseph Gilg, MD's 5,536 claims are above the specialty average of 2,054.
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Gilg, both outside Iowa so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Gilg.
One of 27 Rheumatology Physician providers enrolled in Iowa, 5 are shown here.
Dr. Vijay Aluri
MBBS
Cedar Rapids, IA
Dr. Michael Brooks
MD
Cedar Rapids, IA
Dr. Mark Burdt
DO
Urbandale, IA
Dr. Melissa Chiston
MD
Ames, IA
Dr. Steven Craig
M.D.
Urbandale, IA
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Joseph Gilg, MD's specialty? ▼
Joseph Gilg, MD specializes in Rheumatology Physician and practices in Urbandale, Iowa. Credentials: MD.
How much does Joseph Gilg, MD prescribe under Medicare Part D? ▼
In 2023, Joseph Gilg, MD wrote 5,536 Medicare Part D claims totaling $1.3M in drug costs for 568 beneficiaries.
Where is Joseph Gilg, MD located? ▼
Joseph Gilg, MD is located at 8421 PLUM DR, Urbandale, IA, 50322. Phone: (515) 270-7222.
What is Joseph Gilg, MD's NPI number? ▼
Joseph Gilg, MD's National Provider Identifier (NPI) is 1205941416, issued on 08/20/2006.
Does Joseph Gilg, MD prescribe more brand-name or generic drugs? ▼
Joseph Gilg, MD's prescribing is 5% brand-name and 95% generic drugs by claim count, with $1.1M in brand drug costs.
Does Joseph Gilg, MD prescribe opioids? ▼
Yes, Joseph Gilg, MD had 1,044 opioid claims in 2023 with an opioid prescribing rate of 18.9%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,200 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Joseph Gilg, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Joseph Gilg, MD's most frequently prescribed drugs include Tramadol Hcl, Methotrexate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joseph Gilg, MD accept Medicare? ▼
Joseph Gilg, MD appears in CMS Medicare data with 5,536 Part D claims and 568 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joseph Gilg, MD's credentials? ▼
Joseph Gilg, MD's NPI is 1205941416 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
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 May 2026.