NPI registry status
Active
2026 NPPES data Adult Medicine Physician NPI 1285636126 D.O.
Verify on CMS → John Glazer, D.O.
Adult Medicine Physician in Tucson, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,481 in Adult 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
5K
Medicare Part D claims · 390 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 8% 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
John Glazer, D.O. filed 4,804 Medicare Part D claims in 2023 as a Adult Medicine Physician in Tucson, Arizona, prescribing 91% generic.
- 5K
- Part D claims, 2023
- 91%
- 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.
John Glazer, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,804 Top 7% higher than 93% 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)
John Glazer, D.O. 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 John Glazer, D.O.?
Quality data not reportedPrimary specialty
Adult Medicine Physician
Medicare Part D claims
4,804 71% vs specialty avg
Specialty distribution in Arizona
How Adult Medicine Physician compares to other specialties among Arizona 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 Adult 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).
John Glazer, D.O. appears in the CMS NPPES registry as a Adult Medicine Physician provider holding D.O. credentials at 9550 E GOLF LINKS RD STE 100, Tucson, AZ, 85730, with a listed phone of (520) 910-0207. NPI 1285636126 was issued on 08/11/2005.
Medicare Part D records for calendar year 2023 show 4,804 prescription claims written by this provider, covering 390 Medicare beneficiaries and totaling roughly $335K in drug spend, split 8% brand-name and 91% generic by claim count, with an opioid prescribing rate of 3.0%.
Adult Medicine Physician is a narrow specialty nationwide, with 2,481 enrolled providers across 52 states and an average of 2,807 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 | 1285636126 |
|---|---|
| Specialty | Adult Medicine Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 08/11/2005 |
Brand vs generic prescribing mix · Generic-heavy
John Glazer, D.O. - brand share 8.0%
Adult Medicine Physician average
8% brand-name claims vs 91% generic, on 4,804 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.
4,804
Total Claims
$335K
Total Drug Cost
390
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,197
- Total Day Supply
- 329,071
- Brand vs Generic
- 8% brand / 91% generic
- Brand Drug Cost
- $247K
- Generic Drug Cost
- $88K
- Opioid Claims
- 142 (3.0% rate)
- Antibiotic Claims
- 51
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 1.07
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 34, 65-74: 177, 75-84: 144, 85+: 35
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Glazer, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
351 claims
- Levothyroxine Sodium
Levothyroxine Sodium
280 claims
- Amlodipine Besylate
Amlodipine Besylate
220 claims
- Omeprazole
Omeprazole
175 claims
- Lisinopril
Lisinopril
173 claims
- Losartan Potassium
Losartan Potassium
150 claims
- Tamsulosin Hcl 116
Tamsulosin Hcl
116 claims
- Metformin Hcl 112
Metformin Hcl
112 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 351 |
| Levothyroxine Sodium | 280 |
| Amlodipine Besylate | 220 |
| Omeprazole | 175 |
| Lisinopril | 173 |
| Losartan Potassium | 150 |
| Tamsulosin Hcl | 116 |
| Metformin Hcl | 112 |
| Tramadol Hcl | 96 |
| Sertraline Hcl | 93 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Medicine Physician Overview
How John Glazer, D.O. fits within the Adult Medicine Physician landscape nationally.
2,481
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,807
Avg Claims per Provider
John Glazer, D.O.'s 4,804 claims are above the specialty average of 2,807.
Nearby Adult Medicine Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Glazer.
Dr. Monica Abrante
M.D.
Mesa, AZ
Dr. Adil Baig
M.D.
Yuma, AZ
Dr. Deborah Baldemor
MD
Scottsdale, AZ
Dr. Jenna Bolger
FNP
Glendale, AZ
Dr. Christopher Bonati
M.D.
Scottsdale, AZ
Compare Adult 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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Adult 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 John Glazer, D.O.'s specialty? ▼
John Glazer, D.O. specializes in Adult Medicine Physician and practices in Tucson, Arizona. Credentials: D.O..
How much does John Glazer, D.O. prescribe under Medicare Part D? ▼
In 2023, John Glazer, D.O. wrote 4,804 Medicare Part D claims totaling $335K in drug costs for 390 beneficiaries.
Where is John Glazer, D.O. located? ▼
John Glazer, D.O. is located at 9550 E GOLF LINKS RD STE 100, Tucson, AZ, 85730. Phone: (520) 910-0207.
What is John Glazer, D.O.'s NPI number? ▼
John Glazer, D.O.'s National Provider Identifier (NPI) is 1285636126, issued on 08/11/2005.
Does John Glazer, D.O. prescribe more brand-name or generic drugs? ▼
John Glazer, D.O.'s prescribing is 8% brand-name and 91% generic drugs by claim count, with $247K in brand drug costs.
Does John Glazer, D.O. prescribe opioids? ▼
Yes, John Glazer, D.O. had 142 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
How many Adult Medicine Physician providers are there in the US? ▼
There are 2,481 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,807 Medicare Part D claims per year.
What drugs does John Glazer, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Glazer, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Glazer, D.O. accept Medicare? ▼
John Glazer, D.O. appears in CMS Medicare data with 4,804 Part D claims and 390 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Glazer, D.O.'s credentials? ▼
John Glazer, D.O.'s NPI is 1285636126 with credentials D.O.. 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.