Dr. Ruby Mengwen Wu, DO
- Medicare services, 2024
- 1,074
- Medicare patients, 2024
- 386
- Part D claims, 2024
- 509
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 1111 6th Avenue, 4th Floor Main, Des Moines, IA 50314
- Practice phone
- Call (515) 247-4400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Ruby Mengwen Wu is a hospitalist in Des Moines, Iowa
Dr. Wu practices at Select Specialty Hospital - Des Moines in Des Moines, Iowa, part of Select Medical Holdings.
Dr. Wu's NPI, 1457608275, was assigned on August 10, 2012. Dr. Wu holds Iowa license DO-04876.
- NPI
- 1457608275NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991948234
- NPI enumeration date
- August 10, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (515) 247-4400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruby Mengwen Wu practices at Select Specialty Hospital - Des Moines in Des Moines, Iowa
Dr. Wu's primary practice is Select Specialty Hospital - Des Moines, at 1111 6th Avenue, 4th Floor Main, Des Moines, IA 50314 in Polk County. The practice phone is (515) 247-4400.
- Select Specialty Hospital - Des Moines1111 6th Avenue, 4th Floor Main, Des Moines, IA 50314 · Polk CountyPhone(515) 247-4400
Source: Dmand AI Affiliation Data
Dr. Ruby Mengwen Wu is affiliated with 2 sites of care and 1 medical group
Dr. Wu's primary practice is Select Specialty Hospital - Des Moines in Des Moines, Iowa, part of Select Medical Holdings. Dr. Wu is also affiliated with MercyOne Des Moines Medical Center. The medical group on file is MercyOne Clive Family Medicine.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ruby Mengwen Wu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Select Specialty Hospital - Des Moines | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruby Mengwen Wu is one of 262 hospitalists in Iowa
Hospitalist is Dr. Wu's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Wu is licensed in Iowa.
Specialties and state licenses
- Hospitalist, IowaPrimary
Hospitalists near Dr. Wu
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ruby Mengwen Wu billed Medicare for 1,074 services in 2024
CMS data shows 1,074 Medicare services from Dr. Wu across 7 procedure codes in 2024, for 386 Medicare patients. Medicare paid $71,786 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Wu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0232024: 1,0745%
Dr. Wu compared with the Iowa median for hospitalists, 2024
- Dr. Wu
- Iowa median
- Medicare services
- 1,074vs 4752.3 times
- Medicare patients
- 386vs 23465% above
- Part D claims
- 278vs 753.7 times
Medians across 231 hospitalists in Iowa with Dmand AI profiles that report each measure.
Dr. Wu's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruby Mengwen Wu treated 386 Medicare patients in 2024, average age 75
CMS counts 386 Medicare patients who saw Dr. Wu in 2024. The largest group is 75 to 84, with 143 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.28, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Wu's median patient age at 71, with 48% women.
Dr. Wu's Medicare patients by age, 2024
Dr. Wu's Medicare patients by sex, 2024
- Women21856%
- Men16844%
Chronic conditions among Dr. Wu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Heart failure53%
- Arthritis51%
- Chronic kidney disease51%
- Ischemic heart disease48%
- Diabetes46%
- Atrial fibrillation44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ruby Mengwen Wu wrote 509 Medicare Part D claims in 2024
In 2024, Dr. Wu wrote 509 Medicare Part D claims for 132 patients. 87% of them were for generic drugs. CMS names the drug for 278 of them, across 16 drugs with 11 or more claims each, at $16,059 in total drug cost. In 2023, CMS named 91 claims across 7 drugs.
Dr. Wu's Part D claims by kind of drug, 2024
- Generic444 claims87%
- Brand-name and other65 claims13%
Dr. Wu's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Wu's Part D claims, 2024
- Opioids5%23 of 509 claims
- Antibiotics6%31 of 509 claims
- Antipsychotics, patients 65 and over5%24 of 509 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 912024: 278205%
Drugs named by CMS: 16 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Ruby Mengwen Wu takes part in Medicare
Dr. Wu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Ruby Mengwen Wu's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ruby Mengwen Wu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ruby Mengwen Wu's NPI number?
Dr. Ruby Mengwen Wu's NPI number is 1457608275. It was assigned on August 10, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruby Mengwen Wu?
Dr. Ruby Mengwen Wu is a hospitalist in Des Moines, Iowa. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Ruby Mengwen Wu practice?
Dr. Wu practices at 1111 6th Avenue, 4th Floor Main, Des Moines, IA 50314. Dr. Wu's primary practice is Select Specialty Hospital - Des Moines in Des Moines, Iowa, part of Select Medical Holdings.
What is Dr. Ruby Mengwen Wu's office phone number?
The practice phone on file for Dr. Wu is (515) 247-4400.
What is Dr. Ruby Mengwen Wu's medical license number?
Dr. Wu holds Iowa license DO-04876.
Which hospitals is Dr. Ruby Mengwen Wu affiliated with?
Dr. Wu practices at Select Specialty Hospital - Des Moines in Des Moines, Iowa. Dr. Wu is also affiliated with MercyOne Des Moines Medical Center.
What medical group is Dr. Ruby Mengwen Wu part of?
Dr. Wu is linked to MercyOne Clive Family Medicine.
Does Dr. Ruby Mengwen Wu accept Medicare?
Yes. CMS data shows Dr. Wu billed Medicare for 1,074 services in 2024, and Dr. Wu accepts Medicare assignment.
How many Medicare patients does Dr. Ruby Mengwen Wu see?
CMS counts 386 Medicare patients who saw Dr. Wu in 2024, with an average age of 75.
What services does Dr. Ruby Mengwen Wu bill to Medicare?
In 2024, Dr. Wu's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
What drugs does Dr. Ruby Mengwen Wu prescribe most?
In 2024 Medicare Part D data, Dr. Wu's most prescribed drugs by claims were Levothyroxine Sodium, Potassium Chloride and Atorvastatin Calcium.
How long has Dr. Ruby Mengwen Wu been practicing?
Dr. Wu graduated from medical school in 2013, 13 years ago.
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