JOHN L OHMAN MD
NPI 1083723324
Allergy & Immunology in Boston, MA

NPI Status: Active since August 30, 2006

Contact Information

750 WASHINGTON ST
NEMC BOX 30
BOSTON, MA
ZIP 02111
Phone: (617) 636-5000
Fax: (617) 636-4843

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  • Individual
  • Male
  • Allergy & Immunology
  • PECOS Enrolled

About JOHN OHMAN

This page provides the complete NPI Profile along with additional information for John Ohman, a provider established in Boston, Massachusetts with a medical specialization in Allergy & Immunology. The healthcare provider is registered in the NPI registry with number 1083723324 assigned on August 2006. The practitioner's primary taxonomy code is 207K00000X with license number 31138 (MA). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1083723324
Provider Name
JOHN L OHMAN MD
Gender
Male
Entity Type
Individual
Location Address
750 WASHINGTON ST NEMC BOX 30 BOSTON, MA 02111
Location Phone
(617) 636-5000
Location Fax
(617) 636-4843
Mailing Address
21 MAPLECREST DRIVE SOUTHBOROUGH, MA 01772
Mailing Phone
(508) 481-2594
Mailing Fax
(617) 636-4843
Is Sole Proprietor?
No
Enumeration Date
08-30-2006
Last Update Date
12-07-2010
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Allergy & Immunology

Taxonomy Code
207K00000X
Type
Allopathic & Osteopathic Physicians
License No.
31138
License State
MA
Taxonomy Description
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
HX4391MEDICARE PIN (08)MA 
C46279MEDICARE UPIN (02)MA 
2015528MEDICAID (05)MA 
B32075MEDICARE ID-TYPE UNSPECIFIED (04)MA 

Medicare Participation & PECOS Enrollment Status

John Ohman is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Durable Medical Equipment (DME) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: No

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • Eligible to Order or Refer Power Mobility Devices: Yes

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1083723324, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
2
Unchanged
Pos 7
3
Doubled → 6
Pos 8
3
Unchanged
Pos 9
2
Doubled → 4
Check
4
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 8 → 16 → 7 7 → 14 → 5 3 → 6 2 → 4

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 6 + 3 + 1 + 4 + 2 + 6 + 3 + 4 + 24 = 56

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1083723324.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Interventional Cardiology)
750 WASHINGTON ST
BOSTON, MA 02111
Pediatrics (Neonatal-Perinatal Medicine)
750 WASHINGTON ST, BOX 44
BOSTON, MA 02111
Psychiatry & Neurology (Psychiatry)
750 WASHINGTON ST, TUFTS-NEW ENGLAND MEDICAL CENTER BOX 1007
BOSTON, MA 02111
Surgery (Trauma Surgery)
750 WASHINGTON ST, TUFTS-NEMC #4488
BOSTON, MA 02111
Ophthalmology
750 WASHINGTON ST, BOX 750
BOSTON, MA 02111
Anesthesiology
750 WASHINGTON ST, DEPT. OF ANESTHESIA - TUFTS NEMC
BOSTON, MA 02111
Internal Medicine (Geriatric Medicine)
750 WASHINGTON ST, BOX 401
BOSTON, MA 02111
Internal Medicine
750 WASHINGTON ST
BOSTON, MA 02111
Medical Genetics (Clinical Cytogenetics)
750 WASHINGTON ST, T-NEMC 188
BOSTON, MA 02111
Specialist
750 WASHINGTON ST
BOSTON, MA 02111
Internal Medicine (Hematology & Oncology)
750 WASHINGTON ST, BOX 245
BOSTON, MA 02111
Radiology (Vascular & Interventional Radiology)
750 WASHINGTON ST, NEMC BOX 253
BOSTON, MA 02111
Internal Medicine
750 WASHINGTON ST
BOSTON, MA 02111
Specialist
750 WASHINGTON ST, BOX# 1007
BOSTON, MA 02111
Specialist
750 WASHINGTON ST, # 450
BOSTON, MA 02111
Optometrist
750 WASHINGTON ST, # 450
BOSTON, MA 02111
Psychiatry & Neurology (Psychiatry)
750 WASHINGTON ST, BOX 1007
BOSTON, MA 02111
Nurse Practitioner (Pediatrics)
750 WASHINGTON ST, FLOATING HOSPITAL @TUFTS-NEMC #213
BOSTON, MA 02111
Optometrist
750 WASHINGTON ST, # 450
BOSTON, MA 02111
Optometrist
750 WASHINGTON ST, # 450
BOSTON, MA 02111

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1083723324, enumerated as an "individual" on August 30, 2006.

The provider is located at 750 WASHINGTON ST NEMC BOX 30 BOSTON, MA 02111 and the phone number is (617) 636-5000.

Allergy & Immunology with taxonomy code 207K00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.