Dr. Andrew Walters Maier, MD
- Medicare services, 2024
- 501
- Medicare patients, 2024
- 191
- Part D claims, 2024
- 6,792
- Hospital affiliations
- 4
- Medical groups
- 2
- Practice address
- 3701 Market St, Philadelphia, PA 19104
- Practice phone
- Call (215) 662-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trustees of the University of Pennsylvania
Philadelphia, Pennsylvania
Find Dr. Maier's professional email, personal email and mobile number
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Dr. Andrew Walters Maier is an internist in Philadelphia, Pennsylvania
Dr. Maier practices at Trustees of the University of Pennsylvania in Philadelphia, Pennsylvania.
Dr. Maier's NPI, 1376787846, was assigned on April 28, 2009. Dr. Maier graduated from Perelman School of Med at the University of Pennsylvania in 2009. Dr. Maier holds Pennsylvania license MD443635.
- NPI
- 1376787846NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456516848
- NPI enumeration date
- April 28, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (215) 662-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew Walters Maier practices at Trustees of the University of Pennsylvania in Philadelphia, Pennsylvania
Dr. Maier's primary practice is Trustees of the University of Pennsylvania, at 3701 Market St, Philadelphia, PA 19104 in Philadelphia County. The practice phone is (215) 662-8000.
- Trustees of the University of Pennsylvania3701 Market St, Philadelphia, PA 19104 · Philadelphia CountyPhone(215) 662-8000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Andrew Walters Maier is affiliated with 8 sites of care and 2 medical groups
Dr. Maier's primary practice is Trustees of the University of Pennsylvania in Philadelphia, Pennsylvania. Dr. Maier is also affiliated with Hospital of the University of Pennsylvania. The medical group on file is Penn Medicine Lancaster General Health. Dmand AI also links Dr. Maier to 3 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Andrew Walters Maier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maier practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trustees of the University of Pennsylvania | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew Walters Maier is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Maier's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Maier is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Maier
Counts of internists 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. Andrew Walters Maier billed Medicare for 501 services in 2024
CMS data shows 501 Medicare services from Dr. Maier across 7 procedure codes in 2024, for 191 Medicare patients. Medicare paid $19,647 for them. Every service was in an office.
Dr. Maier's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3392024: 27918%
- Other services
- 2023: 1102024: 222102%
- Tests and treatments
- 2023: 142024: 0100%
Dr. Maier compared with the Pennsylvania median for internists, 2024
- Dr. Maier
- Pennsylvania median
- Medicare services
- 501vs 41720% above
- Medicare patients
- 191vs 185Close to median
- Part D claims
- 5,965vs 22426.6 times
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Maier'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. Andrew Walters Maier treated 191 Medicare patients in 2024, average age 72
CMS counts 191 Medicare patients who saw Dr. Maier in 2024. The largest group is 65 to 74, with 76 patients. 70% of them have high blood pressure, and 59% have high cholesterol. 34% are also on Medicaid. Their average risk score is 1.80, 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. Maier's median patient age at 61, with 63% women.
Dr. Maier's Medicare patients by age, 2024
Dr. Maier's Medicare patients by sex, 2024
- Women10756%
- Men8444%
Chronic conditions among Dr. Maier's Medicare patients, 2024
- High blood pressure70%
- High cholesterol59%
- Diabetes38%
- Arthritis34%
- Chronic kidney disease30%
- Cancer21%
- Mood disorders21%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew Walters Maier wrote 6,792 Medicare Part D claims in 2024
In 2024, Dr. Maier wrote 6,792 Medicare Part D claims for 696 patients. 84% of them were for generic drugs. CMS names the drug for 5,965 of them, across 132 drugs with 11 or more claims each, at $617,696 in total drug cost. In 2023, CMS named 5,766 claims across 137 drugs.
Dr. Maier's Part D claims by kind of drug, 2024
- Generic5,676 claims84%
- Brand-name1,040 claims15%
- Other76 claims1%
Dr. Maier'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. Maier's Part D claims, 2024
- Opioids4%296 of 6,792 claims
- Antibiotics2%106 of 6,792 claims
- Antipsychotics, patients 65 and over1%55 of 6,792 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: 5,7662024: 5,9653%
Drugs named by CMS: 132 in 2024, 137 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
Dr. Andrew Walters Maier offers telehealth to Medicare patients
Dr. Maier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Maier as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Andrew Walters Maier graduated from Perelman School of Med at the University of Pennsylvania
Dr. Maier graduated from Perelman School of Med at the University of Pennsylvania in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Andrew Walters Maier'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Andrew Walters Maier
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. Andrew Walters Maier's NPI number?
Dr. Andrew Walters Maier's NPI number is 1376787846. It was assigned on April 28, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew Walters Maier?
Dr. Andrew Walters Maier is an internist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Andrew Walters Maier practice?
Dr. Maier practices at 3701 Market St, Philadelphia, PA 19104. Dr. Maier's primary practice is Trustees of the University of Pennsylvania in Philadelphia, Pennsylvania. Dmand AI also links Dr. Maier to 3 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Andrew Walters Maier's office phone number?
The practice phone on file for Dr. Maier is (215) 662-8000.
What is Dr. Andrew Walters Maier's medical license number?
Dr. Maier holds Pennsylvania license MD443635.
Which hospitals is Dr. Andrew Walters Maier affiliated with?
Dr. Maier is affiliated with Hospital of the University of Pennsylvania. Dmand AI links Dr. Maier to 3 more hospitals.
What medical group is Dr. Andrew Walters Maier part of?
Dr. Maier is linked to Penn Medicine Lancaster General Health. Dmand AI links Dr. Maier to 1 more medical group.
Does Dr. Andrew Walters Maier accept Medicare?
Yes. CMS data shows Dr. Maier billed Medicare for 501 services in 2024, and Dr. Maier accepts Medicare assignment.
Does Dr. Andrew Walters Maier offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Maier as offering telehealth services.
How many Medicare patients does Dr. Andrew Walters Maier see?
CMS counts 191 Medicare patients who saw Dr. Maier in 2024, with an average age of 72.
Show 4 more questionsShow fewer questions
What services does Dr. Andrew Walters Maier bill to Medicare?
In 2024, Dr. Maier's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).
Where did Dr. Andrew Walters Maier go to medical school?
Dr. Maier graduated from Perelman School of Med at the University of Pennsylvania in 2009.
What drugs does Dr. Andrew Walters Maier prescribe most?
In 2024 Medicare Part D data, Dr. Maier's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Gabapentin.
How long has Dr. Andrew Walters Maier been practicing?
Dr. Maier graduated from medical school in 2009, 17 years ago.
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