NPI registry status
Active
2026 NPPES data Hospice and Palliative Medicine (Internal Medicine) Physician NPI 1912177288 M.D.
Verify on CMS → Ivan Zama, M.D.
Hospice and Palliative Medicine (Internal Medicine) Physician in Greenbelt, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,637 in Hospice and Palliative Medicine (Internal 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
260
Medicare Part D claims · 26 beneficiaries · Hospice and Palliative Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$476.39
8 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Ivan Zama, M.D. filed 260 Medicare Part D claims in 2024 as a Hospice and Palliative Medicine (Internal Medicine) Physician in Greenbelt, Maryland, prescribing 93% generic.
- 260
- Part D claims, 2024
- 93%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥48th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Ivan Zama, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1912177288), first enumerated 03/03/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 260 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$476.39 in reported industry payments (8 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1912177288 · Hospice and Palliative Medicine (Internal Medicine) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1912177288
- ENUM-MID 2008
- TAX-NARROW 1,637
- RX-LIGHT 260
- BOOK-THIN 31 in Maryland
- PHOTO-ENUM Nicole Steinmuller · 2008
Ivan Zama, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
260 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Ivan Zama, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Ivan Zama, M.D.?
Quality data not reportedPrimary specialty
Hospice and Palliative Medicine (Internal Medicine) Physician
Medicare Part D claims
260 80% vs specialty avg
Specialty distribution in Maryland
How Hospice and Palliative Medicine (Internal Medicine) Physician compares to other specialties among Maryland 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 Hospice and Palliative Medicine (Internal 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).
Practice Address
Provider Details
| NPI | 1912177288 |
|---|---|
| Specialty | Hospice and Palliative Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/03/2008 |
Hospital and facility affiliations
Facilities where Ivan Zama, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Dimensions Healthcare Associates, Inc
Upper Marlboro, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Ivan Zama, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$476
Largest payer
Medtronic, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Generic-heavy
Ivan Zama, M.D. - brand share 7.0%
Hospice and Palliative Medicine (Internal Medicine) Physician average
7% brand-name claims vs 93% generic, on 260 2024 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 2024.
260
Total Claims
$15K
Total Drug Cost
26
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 267.267
- Total Day Supply
- 5,910
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $3K
- Generic Drug Cost
- $12K
- Opioid Claims
- 219 (84.2% rate)
Patient Demographics
- Average Patient Age
- 55.4 years
- Avg HCC Risk Score
- 4.41
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Ivan Zama, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Oxycodone Hcl
Oxycodone Hcl
91 claims
- Morphine Sulfate Er
Morphine Sulfate Er
46 claims
- Hydromorphone Hcl 30
Hydromorphone Hcl
30 claims
- Buprenorphine 14
Buprenorphine
14 claims
- Buprenorphine-Nalo… 14
Buprenorphine-Naloxone
14 claims
- Methadone Hcl 13
Methadone Hcl
13 claims
- Morphine Sulfate 13
Morphine Sulfate
13 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 91 |
| Morphine Sulfate Er Morphine Sulfate | 46 |
| Hydromorphone Hcl | 30 |
| Buprenorphine | 14 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 14 |
| Methadone Hcl | 13 |
| Morphine Sulfate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hospice and Palliative Medicine (Internal Medicine) Physician in MD →
All providers in Maryland →
Compare specialties →
Hospice and Palliative Medicine (Internal Medicine) Physician Overview
How Ivan Zama, M.D. fits within the Hospice and Palliative Medicine (Internal Medicine) Physician landscape nationally.
1,637
Hospice and Palliative Medicine (Internal Medicine) Physician Providers in US
51
States with Hospice and Palliative Medicine (Internal Medicine) Physician
1,322
Avg Claims per Provider
Ivan Zama, M.D.'s 260 claims are below the specialty average of 1,322.
Nationwide Hospice and Palliative Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Zama, both outside Maryland so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hospice and Palliative Medicine (Internal Medicine) Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Zama.
One of 31 Hospice and Palliative Medicine (Internal Medicine) Physician providers enrolled in Maryland, 5 are shown here.
Frequently Asked Questions
What is Ivan Zama, M.D.'s specialty? ▼
Ivan Zama, M.D. specializes in Hospice and Palliative Medicine (Internal Medicine) Physician and practices in Greenbelt, Maryland. Credentials: M.D..
How much does Ivan Zama, M.D. prescribe under Medicare Part D? ▼
In 2024, Ivan Zama, M.D. wrote 260 Medicare Part D claims totaling $15K in drug costs for 26 beneficiaries.
Where is Ivan Zama, M.D. located? ▼
Ivan Zama, M.D. is located at 7831 BELLE POINT DR, Greenbelt, MD, 20770. Phone: (301) 902-0664.
What is Ivan Zama, M.D.'s NPI number? ▼
Ivan Zama, M.D.'s National Provider Identifier (NPI) is 1912177288, issued on 03/03/2008.
Does Ivan Zama, M.D. prescribe more brand-name or generic drugs? ▼
Ivan Zama, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $3K in brand drug costs.
Does Ivan Zama, M.D. prescribe opioids? ▼
Yes, Ivan Zama, M.D. had 219 opioid claims in 2024 with an opioid prescribing rate of 84.2%.
How many Hospice and Palliative Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 1,637 Hospice and Palliative Medicine (Internal Medicine) Physician providers across 51 states in the US. The average Hospice and Palliative Medicine (Internal Medicine) Physician provider writes 1,322 Medicare Part D claims per year.
What drugs does Ivan Zama, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ivan Zama, M.D.'s most frequently prescribed drugs include Oxycodone Hcl, Morphine Sulfate Er, Hydromorphone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ivan Zama, M.D. accept Medicare? ▼
Ivan Zama, M.D. appears in CMS Medicare data with 260 Part D claims and 26 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ivan Zama, M.D.'s credentials? ▼
Ivan Zama, M.D.'s NPI is 1912177288 with credentials M.D.. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.