NPI registry status
Active
2026 NPPES data Obesity Medicine (Family Medicine) Physician NPI 1184852899 MD
Verify on CMS → Poonam Chhibber, MD
Obesity Medicine (Family Medicine) Physician in Portland, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 149 in Obesity Medicine (Family 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
4K
Medicare Part D claims · 429 beneficiaries · Obesity Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
90%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Poonam Chhibber, MD filed 4,364 Medicare Part D claims in 2023 as a Obesity Medicine (Family Medicine) Physician in Portland, Oregon, prescribing 90% generic.
- 4K
- Part D claims, 2023
- 90%
- 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.
Poonam Chhibber, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,364 Top 8% higher than 92% 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
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Board-eligible specialty (heuristic, not verified)
Poonam Chhibber, 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 Poonam Chhibber, MD?
Quality data not reportedPrimary specialty
Obesity Medicine (Family Medicine) Physician
Medicare Part D claims
4,364 252% vs specialty avg
Specialty distribution in Oregon
How Obesity Medicine (Family Medicine) Physician compares to other specialties among Oregon 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 Obesity Medicine (Family 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).
Poonam Chhibber, MD appears in the CMS NPPES registry as an Obesity Medicine (Family Medicine) Physician provider holding MD credentials at 1585 SW MARLOW AVE STE 220, Portland, OR, 97225, with a listed phone of (503) 922-2888. NPI 1184852899 was issued on 07/01/2009.
Medicare Part D records for calendar year 2023 show 4,364 prescription claims written by this provider, covering 429 Medicare beneficiaries and totaling roughly $323K in drug spend, split 9% brand-name and 90% generic by claim count, with an opioid prescribing rate of 1.1%.
Obesity Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 149 enrolled providers across 39 states and an average of 1,239 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 | 1184852899 |
|---|---|
| Specialty | Obesity Medicine (Family Medicine) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/01/2009 |
Brand vs generic prescribing mix · Generic-heavy
Poonam Chhibber, MD - brand share 9.0%
Obesity Medicine (Family Medicine) Physician average
9% brand-name claims vs 90% generic, on 4,364 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.
4,364
Total Claims
$323K
Total Drug Cost
429
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 10,901
- Total Day Supply
- 320,450
- Brand vs Generic
- 9% brand / 90% generic
- Brand Drug Cost
- $239K
- Generic Drug Cost
- $83K
- Opioid Claims
- 47 (1.1% rate)
- Antibiotic Claims
- 99
Patient Demographics
- Average Patient Age
- 73.3 years
- Avg HCC Risk Score
- 1.08
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 25, 65-74: 225, 75-84: 142, 85+: 37
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Poonam Chhibber, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
427 claims
- Levothyroxine Sodium
Levothyroxine Sodium
284 claims
- Metformin Hcl Er
Metformin Hcl Er
185 claims
- Losartan Potassium
Losartan Potassium
176 claims
- Metformin Hcl 155
Metformin Hcl
155 claims
- Amlodipine Besylate 149
Amlodipine Besylate
149 claims
- Lisinopril 133
Lisinopril
133 claims
- Losartan-Hydrochlo… 107
Losartan-Hydrochlorothiazide
107 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 427 |
| Levothyroxine Sodium | 284 |
| Metformin Hcl Er Metformin Hcl | 185 |
| Losartan Potassium | 176 |
| Metformin Hcl | 155 |
| Amlodipine Besylate | 149 |
| Lisinopril | 133 |
| Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide | 107 |
| Omeprazole | 101 |
| Glipizide Er Glipizide | 100 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Obesity Medicine (Family Medicine) Physician in OR →
All providers in Oregon →
Compare specialties →
Obesity Medicine (Family Medicine) Physician Overview
How Poonam Chhibber, MD fits within the Obesity Medicine (Family Medicine) Physician landscape nationally.
149
Obesity Medicine (Family Medicine) Physician Providers in US
39
States with Obesity Medicine (Family Medicine) Physician
1,239
Avg Claims per Provider
Poonam Chhibber, MD's 4,364 claims are above the specialty average of 1,239.
Nearby Obesity Medicine (Family Medicine) Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Chhibber.
Compare Obesity Medicine (Family Medicine) 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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obesity Medicine (Family 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 Poonam Chhibber, MD's specialty? ▼
Poonam Chhibber, MD specializes in Obesity Medicine (Family Medicine) Physician and practices in Portland, Oregon. Credentials: MD.
How much does Poonam Chhibber, MD prescribe under Medicare Part D? ▼
In 2023, Poonam Chhibber, MD wrote 4,364 Medicare Part D claims totaling $323K in drug costs for 429 beneficiaries.
Where is Poonam Chhibber, MD located? ▼
Poonam Chhibber, MD is located at 1585 SW MARLOW AVE STE 220, Portland, OR, 97225. Phone: (503) 922-2888.
What is Poonam Chhibber, MD's NPI number? ▼
Poonam Chhibber, MD's National Provider Identifier (NPI) is 1184852899, issued on 07/01/2009.
Does Poonam Chhibber, MD prescribe more brand-name or generic drugs? ▼
Poonam Chhibber, MD's prescribing is 9% brand-name and 90% generic drugs by claim count, with $239K in brand drug costs.
Does Poonam Chhibber, MD prescribe opioids? ▼
Yes, Poonam Chhibber, MD had 47 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Obesity Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 149 Obesity Medicine (Family Medicine) Physician providers across 39 states in the US. The average Obesity Medicine (Family Medicine) Physician provider writes 1,239 Medicare Part D claims per year.
What drugs does Poonam Chhibber, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Poonam Chhibber, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Poonam Chhibber, MD accept Medicare? ▼
Poonam Chhibber, MD appears in CMS Medicare data with 4,364 Part D claims and 429 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Poonam Chhibber, MD's credentials? ▼
Poonam Chhibber, MD's NPI is 1184852899 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.
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.