Douglas P. Sieminski, DO
Family Medicine Physician · Newton, NJ
Douglas P. Sieminski, DO is a family medicine physician with a practice address in Newton, New Jersey, and NPI 1922066125, issued on May 4, 2006. Check the license (New Jersey MB07893100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Douglas P. Sieminski
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MB07893100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 33 Newton Sparta RD, Newton, NJ 07860
- Phone
- (973) 383-2244
- Enumerated
- May 4, 2006
- Record last updated
- Dec 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (973) 383-0448
- Medicare enrollment
- Enrolled (PECOS I20051107001036); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,770 in New Jersey → Look up another NPI →
Also registered at 33 Newton Sparta RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anne Huelbig, PMHNPPsychiatric/Mental Health Nurse Practitioner1487830071
- Frank Kane, M.D.Family Medicine Physician1154390540
- Robert Pampin, D.O.Family Medicine Physician1740242130
Verify Douglas P. Sieminski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license MB07893100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average family medicine physician in 2024
11,531 Medicare Part D claims for 1,190 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium993 claims
- Levothyroxine Sodium699 claims
- Lisinopril575 claims
- Metformin Hcl366 claims
- Amlodipine Besylate343 claims
- Alprazolam289 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.
Industry payments in 2024: $818.30
55 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Consensus Medical Group LLCNewton, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas P. Sieminski among 2,770 family medicine physician records in New Jersey
Douglas P. Sieminski, DO is one of 2,770 family medicine physician records with a practice address in New Jersey. 82% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2003 · median 2006 among the 1,875 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 family medicine physician records list a practice address in Newton
They are 12 of the 503 NPPES records with a practice address in Newton, and 2,770 family medicine physician records in New Jersey.
All 2,770 in New Jersey → Every provider in Newton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shumaila Alam, M.D.Newton, NJ 078601851732143
- Osbin Alvarado Herrera, MDNewton, NJ 078601871159715
- Frank Kane, M.D.Newton, NJ 078601154390540
- Ken Kinoshita, MDNewton, NJ 078601801059258
- Margaret Kozak, DONewton, NJ 078601891781720
- Peter Liloia, D.O.Newton, NJ 078601962601872
- David Mattes, MDNewton, NJ 078601336188473
- John McGraw, MDNewton, NJ 078601114913068
Common questions
What is Douglas P. Sieminski, DO's NPI number?
Douglas P. Sieminski, DO's National Provider Identifier (NPI) is 1922066125, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas P. Sieminski, DO located?
The NPPES record lists a practice address at 33 Newton Sparta RD, Newton, NJ, 07860. Phone: (973) 383-2244. Providers update this record themselves, so call before visiting.
How can I verify Douglas P. Sieminski, DO's license?
NPPES lists New Jersey license number MB07893100, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas P. Sieminski, DO prescribe under Medicare Part D?
In 2024, Douglas P. Sieminski, DO had 11,531 Medicare Part D claims for 1,190 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.