What is Harold Portnoy's NPI number?

Harold Portnoy's National Provider Identifier (NPI) is 1699762310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Harold Portnoy's specialty?

Harold Portnoy is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Harold Portnoy located?

Harold Portnoy's practice location on file with NPPES is 29275 Northwestern Hwy, Southfield, MI 48034-1044.

What is Harold Portnoy's phone number?

The practice phone number listed in the NPPES registry for Harold Portnoy is (248) 784-3708.

Is Harold Portnoy's NPI active?

Yes — Harold Portnoy's NPI (1699762310) is active in the NPPES registry as of the last update on 2007-07-09.

IndividualActive

Harold Portnoy, M.D.

NPI 1699762310 · Specialist · Southfield, MI

Harold Portnoy, M.D. is a Specialist provider in Southfield, MI (NPI 1699762310).

Provider details

NPI number: 1699762310
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Credential: M.D.
Sex: Male
License: 4301022482 (MI)

Specialties & taxonomies

SpecialistPrimary174400000XLicense 4301022482 (MI)
Other Service Providers

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.

Practice location

29275 Northwestern Hwy

Ste 100

Southfield, MI 48034-1044

Phone: (248) 784-3708

Fax: (248) 784-3743

Approximate (ZIP-level) locationGet directions

More MI providers

Mailing address