Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

RONALD B MOSS MD
NPI 1801048079
Allergy & Immunology in Encinitas, CA

Active since October 18, 2008PECOS Enrolled
517 HIDDEN RIDGE CT, ENCINITAS, CA 92024(760) 436-6404(760) 462-3986 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Male
  • Allergy & Immunology
  • PECOS Enrolled

About RONALD MOSS

This page provides the complete NPI Profile along with additional information for Ronald Moss, a provider established in Encinitas, California with a medical specialization in Allergy & Immunology. The healthcare provider is registered in the NPI registry with number 1801048079 assigned on October 2008. The practitioner's primary taxonomy code is 207K00000X with license number G79340 (CA). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1801048079
Provider Name
RONALD B MOSS MD
Gender
Male
Entity Type
Individual
Location Address
517 HIDDEN RIDGE CT ENCINITAS, CA 92024
Location Phone
(760) 436-6404
Location Fax
(760) 462-3986
Mailing Address
PO BOX 41 SOLANA BEACH, CA 92075
Mailing Phone
(619) 742-6035
Is Sole Proprietor?
Yes
Enumeration Date
10-18-2008
Last Update Date
06-30-2026
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Location Map

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.
G79340
License State
CA
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.

Medicare Participation & PECOS Enrollment Status

Ronald Moss 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: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) 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: Yes

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

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

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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 1801048079, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 0 + 4 + 1 + 6 + 0 + 1 + 4 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1801048079.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Clinic/Center (Medical Specialty)
517 HIDDEN RIDGE CT
ENCINITAS, CA 92024

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801048079, enumerated as an "individual" on October 18, 2008.

The provider is located at 517 HIDDEN RIDGE CT ENCINITAS, CA 92024 and the phone number is (760) 436-6404.

Allergy & Immunology with taxonomy code 207K00000X.