NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1699720771 MD
Verify on CMS → Gregg Patten, MD
Critical Care Medicine (Internal Medicine) Physician in Jackson, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,646 in Critical Care Medicine (Internal Medicine) 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
804
Medicare Part D claims · 189 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
35%
generic claims · 65% 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
Gregg Patten, MD filed 804 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in Jackson, Michigan, prescribing 35% generic.
- 804
- Part D claims, 2023
- 35%
- generic prescribing
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.
Gregg Patten, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
804 Top 27% higher than 73% 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-eligible specialty (heuristic, not verified)
Gregg Patten, 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 Gregg Patten, MD?
Quality data not reportedPrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
804 25% vs specialty avg
Specialty distribution in Michigan
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Michigan 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 Critical Care Medicine (Internal Medicine) 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).
Gregg Patten, MD appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD credentials at 900 E MICHIGAN AVE, Jackson, MI, 49201, with a listed phone of (517) 782-3190. NPI 1699720771 was issued on 05/24/2006.
Medicare Part D records for calendar year 2023 show 804 prescription claims written by this provider, covering 189 Medicare beneficiaries and totaling roughly $462K in drug spend, split 65% brand-name and 35% generic by claim count.
Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,646 enrolled providers across 53 states and an average of 1,069 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 | 1699720771 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/24/2006 |
License & disciplinary context - Michigan MI-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to Gregg Patten, MD. To verify Gregg Patten, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Gregg Patten, MD - brand share 65.0%
Critical Care Medicine (Internal Medicine) Physician average
65% brand-name claims vs 35% generic, on 804 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.
804
Total Claims
$462K
Total Drug Cost
189
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,202
- Total Day Supply
- 34,711
- Brand vs Generic
- 65% brand / 35% generic
- Brand Drug Cost
- $452K
- Generic Drug Cost
- $10K
- Antibiotic Claims
- 81
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.76
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 24, 65-74: 77, 75-84: 69, 85+: 19
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gregg Patten, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
185 claims
- Azithromycin
Azithromycin
75 claims
- Albuterol Sulfate … 66
Albuterol Sulfate Hfa
66 claims
- Montelukast Sodium 66
Montelukast Sodium
66 claims
- Ventolin Hfa 59
Ventolin Hfa
59 claims
- Stiolto Respimat 49
Stiolto Respimat
49 claims
- Anoro Ellipta 46
Anoro Ellipta
46 claims
- Symbicort 33
Symbicort
33 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 185 |
| Azithromycin | 75 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 66 |
| Montelukast Sodium | 66 |
| Ventolin Hfa Albuterol Sulfate | 59 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 49 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 46 |
| Symbicort Budesonide/Formoterol Fumarate | 33 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 27 |
| Prednisone | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in MI →
All providers in Michigan →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Gregg Patten, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,646
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider
Gregg Patten, MD's 804 claims are below the specialty average of 1,069.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Patten.
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 Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Critical Care Medicine (Internal Medicine) 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.
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Frequently Asked Questions
What is Gregg Patten, MD's specialty? ▼
Gregg Patten, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Jackson, Michigan. Credentials: MD.
How much does Gregg Patten, MD prescribe under Medicare Part D? ▼
In 2023, Gregg Patten, MD wrote 804 Medicare Part D claims totaling $462K in drug costs for 189 beneficiaries.
Where is Gregg Patten, MD located? ▼
Gregg Patten, MD is located at 900 E MICHIGAN AVE, Jackson, MI, 49201. Phone: (517) 782-3190.
What is Gregg Patten, MD's NPI number? ▼
Gregg Patten, MD's National Provider Identifier (NPI) is 1699720771, issued on 05/24/2006.
Does Gregg Patten, MD prescribe more brand-name or generic drugs? ▼
Gregg Patten, MD's prescribing is 65% brand-name and 35% generic drugs by claim count, with $452K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,646 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Gregg Patten, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Gregg Patten, MD's most frequently prescribed drugs include Trelegy Ellipta, Azithromycin, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gregg Patten, MD accept Medicare? ▼
Gregg Patten, MD appears in CMS Medicare data with 804 Part D claims and 189 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gregg Patten, MD's credentials? ▼
Gregg Patten, MD's NPI is 1699720771 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.