William K. Boss, MD
Specialist · Hackensack, NJ
William K. Boss, MD is a specialist with a practice address in Hackensack, New Jersey, and NPI 1598769317, issued on Jun 9, 2005. Check the license (New Jersey MA33810, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William K. Boss
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- MA33810 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 20 Prospect Ave, Hackensack, NJ 07601
- Phone
- (201) 488-1035
- Enumerated
- Jun 9, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (201) 489-6966
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,636 in New Jersey → Look up another NPI →
Also registered at 20 Prospect Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jessica Androsiglio, APNWomen's Health Nurse Practitioner1831642024
- Shoaib Ashraf, MDInternal Medicine Physician1508424466
- Shadeen Bailey, RNRegistered Nurse1710799143
- Bindu Balani, M.D.Infectious Disease Physician1063489243
Verify William K. Boss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license MA33810Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average specialist in 2024
12 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $29.15
1 payment: food and beverage; the largest payer was Abbvie Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
William K. Boss among 1,636 specialist records in New Jersey
William K. Boss, MD is one of 1,636 specialist records with a practice address in New Jersey. 38% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 38% of these records are
- In the CMS Doctors and Clinicians fileNo · 29% of these records are
- Record last updated2026 · 83% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 specialist records list a practice address in Hackensack
They are 30 of the 2,908 NPPES records with a practice address in Hackensack, and 1,636 specialist records in New Jersey.
All 1,636 in New Jersey → Every provider in Hackensack → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Kevin Basralian, M.D.Hackensack, NJ 076011851392252
- Mark Berman, M.D.Hackensack, NJ 076011659348381
- Damon Fellman, MDHackensack, NJ 076011982671830
- Ramon Flores, M.D.Hackensack, NJ 076011043279227
- Dev Gupta, MDHackensack, NJ 076011720055502
- Anthony Marquinez, M.D.Hackensack, NJ 076011699742551
- John Nogueira, MDHackensack, NJ 076011578513743
- Gregory Rauscher, MDHackensack, NJ 076011346244159
Common questions
What is William K. Boss, MD's NPI number?
William K. Boss, MD's National Provider Identifier (NPI) is 1598769317, issued on Jun 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William K. Boss, MD located?
The NPPES record lists a practice address at 20 Prospect Ave, Hackensack, NJ, 07601. Phone: (201) 488-1035. Providers update this record themselves, so call before visiting.
How can I verify William K. Boss, MD's license?
NPPES lists New Jersey license number MA33810, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does William K. Boss, MD prescribe under Medicare Part D?
In 2024, William K. Boss, MD had 12 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.