What is Mark Greene's NPI number?

Mark Greene's National Provider Identifier (NPI) is 1598836959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Greene's specialty?

Mark Greene is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).

Where is Mark Greene located?

Mark Greene's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104-4206.

What is Mark Greene's phone number?

The practice phone number listed in the NPPES registry for Mark Greene is (215) 662-6503.

Is Mark Greene's NPI active?

Yes — Mark Greene's NPI (1598836959) is active in the NPPES registry as of the last update on 2011-02-18.

IndividualActive

Mark Greene, MD

NPI 1598836959 · Anatomic Pathology Physician · Philadelphia, PA

Mark Greene, MD is a Anatomic Pathology Physician provider in Philadelphia, PA (NPI 1598836959).

Provider details

NPI number: 1598836959
Entity type: Individual
Primary specialty: Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: MD033875E (PA)

Practice location

3400 Spruce St

Philadelphia, PA 19104-4206

Phone: (215) 662-6503

Street-level locationGet directions

More PA providers

Mailing address

3400 Spruce St

Philadelphia, PA 19104-4206

Specialties & taxonomies

Anatomic Pathology PhysicianPrimary207ZP0101XLicense MD033875E (PA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)
Lorazepam	21

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2006-11-09
Last updated: 2011-02-18

Frequently asked questions

What is Mark Greene's NPI number?: Mark Greene's National Provider Identifier (NPI) is 1598836959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mark Greene's specialty?: Mark Greene is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
Where is Mark Greene located?: Mark Greene's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104-4206.
What is Mark Greene's phone number?: The practice phone number listed in the NPPES registry for Mark Greene is (215) 662-6503.
Is Mark Greene's NPI active?: Yes — Mark Greene's NPI (1598836959) is active in the NPPES registry as of the last update on 2011-02-18.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Frequently asked questions