Montserrat Diaz-Abad, M.D.
Sleep Medicine (Internal Medicine) Physician · Baltimore, MD
Montserrat Diaz-Abad, M.D. is a sleep medicine (internal medicine) physician with a practice address in Baltimore, Maryland, and NPI 1326246265, issued on Jul 3, 2007. Check the license (Maryland D66093, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Montserrat Diaz-Abad
- Credential
- M.D.
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- D66093 MD
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St, Baltimore, MD 21201
- Phone
- (410) 706-5549
- Enumerated
- Jul 3, 2007
- Record last updated
- Oct 15, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (410) 706-8162
- Medicaid ID
- 4127331-00 MD
- Medicare enrollment
- Enrolled (PECOS I20070904000583); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 26 in Maryland → Look up another NPI →
Also registered at 22 S Greene St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Elsadig Abdalla, MDStudent in an Organized Health Care Education/Training Program1073364477
- Ehssan AbdolalizadehStudent in an Organized Health Care Education/Training Program1093653271
- Mohammad Abdulelah, MDStudent in an Organized Health Care Education/Training Program1114650108
- Leenah AbdulgaderStudent in an Organized Health Care Education/Training Program1386323301
- Ifedayo Abiola-Matthew, CRNPAcute Care Nurse Practitioner1033781117
Verify Montserrat Diaz-Abad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D66093Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
28 Medicare Part D claims, against an average of 585 among the 852 providers of this specialty who prescribed in Part D.
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): 100 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $293.65
2 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 664 providers of this specialty with any payment received $3,724.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University OF Maryland Physicians PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Montserrat Diaz-Abad among 26 sleep medicine (internal medicine) physician records in Maryland
Montserrat Diaz-Abad, M.D. is one of 26 sleep medicine (internal medicine) physician records with a practice address in Maryland. 81% 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 50% of them.
- NPI issued2007 · 50% of these records are older, 35% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1997 · median 1999 among the 16 with a school on file
- Record last updated2012 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Maryland
There are 26 sleep medicine (internal medicine) physician records in Maryland.
All 26 in Maryland → Every provider in Baltimore → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Amandeep BawaBaltimore, MD 212011720059645
- John Brown, M.D.Baltimore, MD 212011215968516
- Danielle Glick, MDBaltimore, MD 212011063830685
- Steven Scharf, M.D.Baltimore, MD 212011992766547
- Avelino Verceles, M.D.Baltimore, MD 212011063448322
- Karoline Moon, M.D.Baltimore, MD 212041972629210
- Stephanie Wappel, M.D.Towson, MD 212041942599568
- Khaleel Ahmed, M.DBaltimore, MD 212291588783286
Common questions
What is Montserrat Diaz-Abad, M.D.'s NPI number?
Montserrat Diaz-Abad, M.D.'s National Provider Identifier (NPI) is 1326246265, issued on Jul 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Montserrat Diaz-Abad, M.D. located?
The NPPES record lists a practice address at 22 S Greene St, Baltimore, MD, 21201. Phone: (410) 706-5549. Providers update this record themselves, so call before visiting.
How can I verify Montserrat Diaz-Abad, M.D.'s license?
NPPES lists Maryland license number D66093, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Montserrat Diaz-Abad, M.D. prescribe under Medicare Part D?
In 2024, Montserrat Diaz-Abad, M.D. had 28 Medicare Part D claims; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.
What is Montserrat Diaz-Abad, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.