NPPES file of Aug 9, 2026

Paul A. Sack, M.D.

Endocrinology, Diabetes & Metabolism Physician · Baltimore, MD

Paul A. Sack, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Baltimore, Maryland, and NPI 1598707606, issued on Jun 12, 2006. Check the license (Maryland D60541, as entered in NPPES) on the Maryland Board of Physicians; 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
1598707606
Name
Paul A. Sack
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
D60541 MD
Self-reported in NPPES; status is on the state search
Practice location
200 E 33RD St, Baltimore, MD 21218
Phone
(410) 554-4511
Enumerated
Jun 12, 2006
Record last updated
Dec 9, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(301) 625-1485
Medicaid ID
407984100 MD
Medicare enrollment
Enrolled (PECOS I20050827000203); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2000
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 E 33RD St

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

  1. Jose Almario, M.D.Nephrology Physician1689611881
  2. Stuart Bell, M.D.Internal Medicine Physician1740243682
  3. Joselito Cabacar, M.D.Nephrology Physician1356362594
  4. Issam Cheikh, M.D.Endocrinology, Diabetes & Metabolism Physician1639132848
  5. June Compton, CRNPSpecialist1265525364
  6. Laura Cowen, M.D.Endocrinology, Diabetes & Metabolism Physician1457514333

Verify Paul A. Sack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D60541
    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 Maryland license search

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74% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

4,574 Medicare Part D claims for 550 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims. 15 claims were for opioids.

  1. Paul Sack4,574
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium401 claims
  2. Mounjaro266 claims
  3. Ozempic212 claims
  4. Atorvastatin Calcium191 claims
  5. Trulicity172 claims
  6. Metformin Hcl169 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): 80.2 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 score76.7
  2. Costout of 100 · 30%53.5
  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).

Industry payments in 2024: $1,620.59

5 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Paul Sack$1,620.59
  2. Specialty average$5,742.15

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

  1. Medstar Medical Group II LLCBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Paul A. Sack among 314 endocrinology, diabetes & metabolism physician records in Maryland

Paul A. Sack, M.D. is one of 314 endocrinology, diabetes & metabolism physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2000 · median 2003 among the 193 with a school on file
  • Record last updated2016 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Maryland

There are 314 endocrinology, diabetes & metabolism physician records in Maryland.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Issam Cheikh, M.D.Baltimore, MD 212181639132848
  2. Malek Cheikh, MDBaltimore, MD 212181235363128
  3. Laura Cowen, M.D.Baltimore, MD 212181457514333
  4. Isabel Marcano Bonilla, MDBaltimore, MD 212181902293863
  5. Aneeqa Saif, MDBaltimore, MD 212181609494400
  6. Pamela SchroederBaltimore, MD 212181710911821
  7. Mansur Shomali, M.D.Baltimore, MD 212181194789370
  8. Henry Fein, M.D.Baltimore, MD 212151457302861

Common questions

What is Paul A. Sack, M.D.'s NPI number?

Paul A. Sack, M.D.'s National Provider Identifier (NPI) is 1598707606, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Paul A. Sack, M.D. located?

The NPPES record lists a practice address at 200 E 33RD St, Baltimore, MD, 21218. Phone: (410) 554-4511. Providers update this record themselves, so call before visiting.

How can I verify Paul A. Sack, M.D.'s license?

NPPES lists Maryland license number D60541, 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 Paul A. Sack, M.D. prescribe under Medicare Part D?

In 2024, Paul A. Sack, M.D. had 4,574 Medicare Part D claims for 550 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

What is Paul A. Sack, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.2 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.