NPPES file of Aug 9, 2026

H Alexander Maas, D.O.

Hospice and Palliative Medicine (Emergency Medicine) Physician · Clinton Township, MI

H Alexander Maas, D.O. is a hospice and palliative medicine (emergency medicine) physician with a practice address in Clinton Township, Michigan, and NPI 1306047550, issued on May 29, 2007. Check the license (Michigan 5101016574, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306047550
Name
H Alexander Maas
Credential
D.O.
Primary taxonomy
Hospice and Palliative Medicine (Emergency Medicine) Physician 207PH0002X
License number
5101016574 MI
Self-reported in NPPES; status is on the state search
Practice location
15855 19 Mile RD, Clinton Township, MI 48038
Phone
(586) 263-2300
Enumerated
May 29, 2007
Record last updated
Mar 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 15855 19 Mile RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cyril Abadir, DOStudent in an Organized Health Care Education/Training Program1508669201
  2. Mostafa AbdeenStudent in an Organized Health Care Education/Training Program1306527684
  3. Ahmed AbdelazizInternal Medicine Physician1477242170
  4. Andrea Abousamra, DONeurology Physician1447786520
  5. Nicole Adams, D.O.Emergency Medicine Physician1063753960
  6. Anthony Affatato, D.O.Emergency Medicine Physician1851473094

Verify H Alexander Maas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101016574
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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49% fewer Medicare Part D claims than the average hospice and palliative medicine (emergency medicine) physician in 2024

98 Medicare Part D claims for 70 beneficiaries, against an average of 194 among the 130 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. H Maas98
  2. Specialty average194

Most prescribed

  1. Prednisone16 claims
  2. Oxycodone-Acetaminophen14 claims
  3. Meloxicam13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 83.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.6
  2. Costout of 100 · 30%58.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

H Alexander Maas among 10 hospice and palliative medicine (emergency medicine) physician records in Michigan

H Alexander Maas, D.O. is one of 10 hospice and palliative medicine (emergency medicine) physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 30% of them.

  • NPI issued2007 · 30% of these records are older, 20% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2020 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PH0002X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospice and Palliative Medicine (Emergency Medicine) Physician providers in Michigan

There are 10 hospice and palliative medicine (emergency medicine) physician records in Michigan.

The 8 hospice and palliative medicine (emergency medicine) physician records with the nearest ZIP codes

  1. Becky Heth, D.O.Mount Clemens, MI 480431356558522
  2. Bradley Heth, D.O.Mount Clemens, MI 480431568679710
  3. Eric Herrera, MDRoyal Oak, MI 480671972710432
  4. Patrick Hawley, M.D.Detroit, MI 482021750479085
  5. Norman Harrison, M.D.Detroit, MI 482141427269034
  6. Robert Zalenski, MDRochester Hills, MI 483091922017458
  7. David King, MDByron Center, MI 493151952751844
  8. Gregory Mervenne, MDGrand Rapids, MI 495031215955752

Common questions

What is H Alexander Maas, D.O.'s NPI number?

H Alexander Maas, D.O.'s National Provider Identifier (NPI) is 1306047550, issued on May 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is H Alexander Maas, D.O. located?

The NPPES record lists a practice address at 15855 19 Mile RD, Clinton Township, MI, 48038. Phone: (586) 263-2300. Providers update this record themselves, so call before visiting.

How can I verify H Alexander Maas, D.O.'s license?

NPPES lists Michigan license number 5101016574, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does H Alexander Maas, D.O. prescribe under Medicare Part D?

In 2024, H Alexander Maas, D.O. had 98 Medicare Part D claims for 70 beneficiaries; the average among hospice and palliative medicine (emergency medicine) physician prescribers was 194. Part D covers Medicare prescriptions only.

What is H Alexander Maas, D.O.'s MIPS final score?

The 2023 MIPS final score is 83.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.